B41227 Parentage: B35207 x POJ2878
Common Names: "Grey Hog" & "Jump out o' root"
B41227 can be recognised by its medium thick grey-green stalks which usually have cracks on the lower joints, dark red-brown collar and purplish leaf sheaths.
Brief Botanical Description
Stalks are yellowish-green turning greenish-grey with purple flushes when older. Internodes are of medium length but rather short toward the base of the stalk, cylindrical in shape, with a marked wax
covering on the upper third and often with longitudinal cracks. Buds are round with a broad well-developed wing, the buds being medium sized, inserted near the leaf scar and just reaching but not
extending beyond the growth ring. The leaves are of average length and width, mid-green with small irregular whitish patches toward the base. The collar is purplish-brown and auricles inconspicuous.
The unexposed sheath is green, slightly waxy but becomes entirely purple with increasing age and exposure. B41227 could be confused with HJ5741 or B51415, but the bud of HJ5741 is larger and
squarer and the leaves darker green with an orange collar. B51415 has thicker, yellower stalks, narrow erect leaves and very spiny leaf sheaths.
Agricultural Features
Germinates readily, tillers heavily and continuously and early growth is rapid and erect. It is not very free trashing and lodges heavily after about 30 t.c.a. Juice quality is moderate and B41227 ripens mid to late crop and after 12 months of growth. It stands over reasonably well but S/O crops tend to have poor juice because of late suckering. Adapted to wide range of soil and climatic conditions, but is best planted on heavy irrigated clays and in cooler uplands. On deep fertile loams and in high rainfall areas retarded ripening and poor juice quality limit its use. B41227 is a very strong ratooner and is moderately tolerant of salinity and drought. It rarely arrows. Resistant to smut, rust and mosaic. B41227 is a tough old cane which can withstand poor conditions. The main problem with this variety is managing it so as to obtain best juice quality.
Recommended for heavier soils in Irrigated St. Catherine/Clarendon area, the Central area, the hillside soils in Clarendon/St. Catherine, St. Elizabeth and Hanover. Also for limited use on difficult
soils in high rainfall areas where sufficient tops of other disease resistant varieties are unavailable.
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B51129 Parentage: B45170 x B41227
Common Names: "One two nine " & "Morris Red"
B51129 is recognised by dark red, thicker than average stalks, somewhat protuberant hemispherical buds, and large tops with very broad, dark green leaves.
Brief Botanical Description
Stalks are reddish-purple when young with paler yellowish-green nodal area and heavy wax covering. Older stalks are a uniform dark red with no cork patches or splits. Internodes are
cylindrical/convex and slightly curved with a zig-zag joint profile. The bud is ovate, pale green when young, turning dark brown with age. Leaves are very wide, erect when young, broadly arched
when older, dark green in colour with irregular whitish patches near the collar. The collar is reddish-purple, waxy; auricles are absent. The sheath is green with red flushing and very few hairs. This
variety is distinguished from other "red canes" by large dark green tops and leaves, and rather thick stalks.
Agricultural Features
Germination is only satisfactory from immature 'tops' or good nursery material of less than 7 months of age. Early growth is erect and uniform and there is little or no late suckering. B51129 is free
trashing with large attractive canes, lodging at over 35 t.c.a. The variety ratoons fairly well, but not through a heavy trash blanket or on heavy compacted soils. It responds well to extra N, up to 160
lbs/ac without deterioration in juice quality. Its yields and ratooning are enhanced by interrow cultivation. B51129 is intolerant of drought and salinity and very heavy soils. It is of above average juice
quality throughout the crop and gives best response to cane ripeners. B51129 is resistant to smut, rust, mosaic and many important foreign diseases, such as leaf scald and Fiji disease.
Recommended for use on light to medium soils in high rainfall areas - Frome, Appleton, Holland, Bybrook/ Worthy Park, Gray's Inn and J.S.E. areas, also in the Irrigated areas with light soils and good
non-saline water supplies.
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B51410 Parentage: B35207 x POJ2878
Common Names:
B51410 is characterized by its very erect growth, purple leaf sheaths, yellowish-brown stalks and tendency to arrow heavily.
Brief Botanical Description
Very erect and uniform stalks of medium thickness, stools compact and upright and very resistant to lodging. Younger stalks are pale yellowish-green developing reddish-brown flushing and darker
irregular brown patches with age and exposure. Internodes are generally smooth, with only light wax cover except at the narrow and very distinct wax band below the leaf scar. Internodes are conodial
with distinct zig-zag joint profile. Buds are large, oblong/oval with large wings and fine adpressed hairs, bud colour is variable, usually yellowish with purple flush when young. Leaf blades are wide,
arched and deep green in colour. The collar is purple and the sheaths pale green but sheaths quickly develop to a bright purple-red with exposure. The sheath bears sparse but very stiff hairs. Inner
auricles tend to be broad and fairly conspicuous.
Agricultural Features
Germination is satisfactory only from good quality, immature seed material. Growth is fairly rapid and tillering heavy and uniform but occasional late suckers are produced. Remains erect up to 60
t.c.a. Retains trash and burns very readily, well liked by cutters because of its erectness, large uniform stalks and good burning. Will grow well on all but poorly drained or saline soils. B51410 is fairly
drought tolerant, it arrows heavily and therefore should be planted and reaped so that it is less than 8 months old by November. Juice quality is best mid-crop, deteriorating rapidly later in crop.
Fertilization at more than 80 lbs N per acre depresses juice quality. Resistant to smut, rust and mosaic. Susceptible to chlorotic streaks.
Recommended for all areas except Central uplands (Worthy Park and U.E.) and saline areas. Its usefulness is limited by its narrow peak of juice quality and heavy flowering if planted or reaped too
early.
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B51415 Parentage: B35206 x POJ2878
Common Name: "Kasha Cane"
B51415 has thick greenish-yellow stalks with brown corky striations. The leaves are narrow, erect and pointed, with very hairy leaf sheaths.
Brief Botanical Description
The stalks are erect, uniform with long, cylindrical to convex, medium to thick internodes. Internodes are yellowish-green when young, turning darker green with brown corky patches and striations
with age and exposure. Buds are round/pentagonal with a small wing, pale green in colour turning brown with age. Leaves are narrow, very erect and pointed, often folded inwards as if affected by
drought. The collar is dark red-brown and covered with wax. Auricles are poorly developed; sheaths are pale green, waxy and covered with numerous and very conspicuous sharp spines.
Agricultural Features
Good germination obtained only from good quality nursery material or immature tops. Early growth and tillering somewhat slow and ground cover is poor because of the erect habit of the leaves. The
stalks are erect, uniform, thick, solid, rather soft and fairly free trashing. Lodging occurs over 40 t.c.a. Spines on the sheath is a problem if reaped green. Juice quality can be very good, but does not
hold in over mature cane or in late reaped crops. Adapted to light and medium soils with good water supply, but not to saline or very heavy clays and thin hillside lands. It is somewhat hardier than
B51129 and a good ratooner. It almost never arrows. Resistant to smut, takes mild rust attack at certain periods but not serious enough to cause yield loss. Also takes ring spot and eye spot, which at a
distance, may be mistaken for rust.
Recommended for alluvial soils in J.S.E., G.I.C. areas, Caymanas, U.E. and Worthy Park areas, lighter soils with good water supply on Bernard Lodge, Vere, Appleton, Holland, Frome and Barnett.
BJ5924 Parentage: CO421 x B4995
Common Name:
BJ5924 has a unique 'basket shaped' stooling habit. The stalks which grow out at an oblique angle from the ground have a pale green, spreading canopy of leaves.
Brief Botanical Description
Stalks emerge from the ground at an oblique angle curving upwards as they elongate. Stalks are of medium thickness, pale yellow-green. Internodes are cylindrical, rather long and smooth with
moderate wax covering which is more pronounced below the leaf scar. Buds are small to medium, oval, with wings extending upwards at the apex of the bud. There is no bud groove. Leaves of
medium width, long and arched, paler green than most other varieties. The collar is pale yellow-green and the inner auricle conspicuous, sometimes folding at an angle across the sheath. The sheath is
pale green with dense covering of rather inconspicuous hairs which are mostly on mid to upper third of sheath.
Agricultural Features
Germination is rapid and reliable, growth and tillering rapid at first, tillering later restricted, stalks continue to elongate later in growth cycle than, for example, is the case with UCW5465. Because of
the oblique growth habit it covers over very early and the foliage has a dense spreading appearance. The variety is fairly free trashing and does not lodge up to about 45 t.c.a. Juice quality is poor early
in the crop and in cane less than 12 months old, but is as good as that of HJ5741 mid-to-late crop on the North Coast and comparable with B49119 on the irrigated south. It stands over well, with good
juice quality in stand over crops. Arrows occasionally and sparsely, mostly in upland areas. It is adapted to a wide range of soils, but ratoons poorly on very thin soils, on heavy saline clays or when
affected by severe drought. It is moderately resistant to smut, resistant to rust, may be susceptible to mosaic but resistant to most of the minor fungal leaf diseases.
Recommended for better soils in North Coast and medium soils on the irrigated plains and basin clays in upland areas. For planting mid-to-late crop and for fall plants.
UCW5465 Parentage: B42231 x Co421
Common Name: "UC" & "Red Virgin"
UCW5465 is now the most widely grown variety in Jamaica, being particularly suited to the Irrigated and North Coast areas. It is recognised by its smooth, red, clean-trashing stalks.
Brief Botanical Description
Young stalks are erect, red-brown with slight cork patches, the older exposed stalks are lighter red, smooth, shiny and almost wax free. The internodes are cylindrical, of medium thickness usually
longer than average, but the topmost internodes of mature cane become markedly and progressively shorter. Buds are ovate, pointed at the apex with pronounced, broad and rather angular wings with a
brush of hairs at the apex. There is a slight bud groove. Leaf blades are narrow, rather long and pale green in colour, they are erect, but curve sharply at the tip. The collar is brown and the auricles
inconspicuous. The sheaths are pale green, with a fair wax covering, hairs are present on the younger sheaths but are shed from older sheaths. The 'top' is small in mature cane.
Agricultural Features
Germination is very rapid and reliable even from older sections of stalks. Early growth and tillering is rapid and good ground cover is quickly achieved. It is free trashing and remains erect up to about
40 t.c.a. At higher yields it lodges in a tangled fashion. UCW5465 burns cleanly but is somewhat brittle for handling. It ratoons well under conditions to which it is best adapted, but under marginal
conditions yields fall after 3rd ratoon. It arrows only rarely. Juice quality is generally good and it matures early, but does not stand over well. Adapted to a wide range of soil and climatic conditions and
is moderately tolerant of salinity, drought, and can be grown on thin calcareous soils. It is highly resistant to rust and moderately resistant to smut. Though it sometimes shows smut infection, the
development of the disease in this variety is very slow and is unlikely to affect yields over the normal ratooning cycle. It is resistant to most of the common leaf diseases but occasionally shows ring
spot and mottled stripe/red stripe infection under cool moist conditions.
Recommended for all areas excepting deep fertile soils in excessively moist areas (use B51129 instead) and very thin and droughty hill side lands (use Co331 instead).
BJ6183 Parentage: NCO330 Polycross
Common Name: "Anancy"
BJ6183 is recognised by erect, pale yellow-green stalks with short internodes, bulging nodes, small buds and rather pale green foliage.
Brief Botanical Description
Stalks erect, pale yellowish-green, with light wax bloom, of variable thickness but usually of medium thickness, in compact stools. Internodes are cylindrical/concave, yellow-cream where unexposed,
greener where exposed and rather shorter than average. The nodal area, i.e. the growth ring, root band and leafscar area are of greater diameter than the internode. The bud is small, square,
yellow-cream and flush with the stalk, being set in marked depression in the root band. A bud groove is present and is sometimes quite prominent. Leaves are long, of medium width, pale green; the
collar is pale yellow with darker wax covering; the auricles small and inconspicuous; the sheath is pale green and covered with fine powdery wax. Hairs are present, but are very sparse on younger
sheaths, falling off on older sheaths.
Agricultural Features
Germinates readily, elongation is slow, particularly in plantcane, but tillering is very profuse and uniform giving the cane a short compact appearance. Stalks are dense, upright, non-brittle, not free
trashing and fairly lodging-resistant. Juice quality is usually better than average throughout the season, arrowing has been observed but only in the very wet year. It is a good ratooner and is adapted to
light to medium soils, but is intolerant of prolonged water stress, thin droughty soils or heavy saline clays. Responds to some cane ripeners on irrigated plains and elsewhere. It is of intermediate
resistance to smut and resistant to rust and other common leaf diseases. It has not been tested for mosaic.
Recommended for light to medium soils wit adequate water supply in the irrigated plains, for the Bog Walk area and all high rainfall areas. BJ6183 should not however be planted in fields coming out
of heavily smut-infected HJ5741. Nursery areas of BJ6183 should also be stool-rogued for smut. Is recommended for planting in fields which previously had B4362 or other non-smut susceptible varieties.
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BJ6732 Parentage: B5650 x B51410
Common Name: "Bedward"
BJ6732 shows no very conspicuous botanical features by which it may be readily distinguished from other varieties, it is fairly free trashing with clean, greenish yellow stalks and mid-green, upright
rather shiny leaves.
Brief Botanical Description
The stalks are fairly uniform yellow-green, burning to light orange on older exposed stalks. Internodes are cylindrical to slightly curved. The joint profile is slightly zig-zag. Buds are medium sized,
ovate, with prominent encircling wings. There is a slight bud groove marked occasionally by a linear cork patch. The leaves are of medium width, held erect but drooping at the tips and have a rather
stiff and shining appearance. The collar is pale green, sometimes with a purple margin when young. Auricles are variable but usually rather small and inconspicuous. The sheaths are pale green, waxy
with very sparse hairs which disappear from older sheaths.
Agricultural Features
Germinates is very good with early growth just slightly less rapid than that of UCW5465. The stalks have higher than average fibre and therefore resist lodging even at high yields. because its leaves
are erect, ground cover is slow. There is some amount of late tillering which results in lower than average juice quality, i.e. about equivalent to that of B41227. It is highly resistant to smut and rust, but
has a limited range of adaptation doing best on neutral to alkaline clays.
Recommended for clay soils in irrigated areas where good drying off is possible. Fairly erect habit and free trashing make it suitable for green-harvest.
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BJ6904 Parentage: B50210 Polycross
Common Name: "Cudjoe"
This variety has a rather trashy and leafy appearance and the older sheaths usually show a characteristic orange-red blotching (red-rot of the leaf sheath). The stalks have a whitish appearance. The
leaves are affected by rust in the earlier growth stages.
Brief Botanical Description
The stalks are semi-erect, curved outwards from the base. The basic stalk colour is yellowish-cream or light yellowish-green. It flushes light pink where exposed and is covered with a heavy wax deposit which gives the stalks a whitish appearance. Internodes are long, cylindrical/convex and slightly curved. Buds are small, round, and set in a slight depression in the stalk. The bud reaches only 2/3 the distance from leaf scar to growth ring. Wings are inconspicuous and the bud apex is indented. There is a slight bud groove. The leaves are light green, younger leaves are erect, drooping sharply at the tips; older leaves are held at a rather wider angle. More green leaves than average are retained on the stalks of this variety, the older leaves and tips of the younger leaves usually show numerous narrow, dark rust lesions. The collar is pale yellow-green and the auricles inconspicuous. The young sheaths are green, but soon become blotched with red-rot. There is a group of sharp stiff hairs in the middle of the sheath.
Agricultural Features
Germination is rapid and reliable and growth is rapid and vigorous. BJ6904 tillers freely and uniformly with few late suckers. The habit is semi-erect with stalks emerging at an angle and curving
upwards from the base. Trash and leaves are retained, producing a heavy canopy of foliage. BJ6904 arrowed at some sites in the very wet year of 1979. It is a variety which has very good juice and its
sugar yields were equal to or better than that of HJ5741 in trials at Frome and Duckenfield. It is moderately resistant to smut but somewhat susceptible to rust, however, it grows rapidly and vigorously
despite the rust attack, symptoms being reduced as the cane ages.
Recommended for limited extension on better soils in the Frome, Appleton, Holland and Duckenfield factory areas. Should not be planted on thin, droughty or infertile soils as rust may limit growth on
such soils.
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BJ7013 Parentage: UCW5465 x B41227
Common Name: "Cockspur"
This variety is recognised by its rather large, very waxy, grey-green stalks, large pointed hairy buds and extremely hairy leaf sheaths.
Brief Botanical Description
Stalks are fairly erect, medium to thick, green with slight pink flushes or burned to yellow-green on older sections of stalks. There is a very heavy wax bloom giving the stalks an overall ashy grey-green
appearance. Internodes are rather long, cylindrical to slightly conoidal, without cracks, cork patches or striations. There is a marked zig-zag joint profile. Growth ring, root band and leaf scar are rather
broad, but not swollen. The buds are large, round, somewhat protuberant and pointed with a conspicuous apical brush of hairs, so that the bud has a long pointed appearance and extends from the leaf
scar to well beyond the growth ring. Leaves are fairly erect, broad, long, arching and dark green. The collar is purple-brown and the auricle on the enfolding side long and very prominent. The sheath is
pale green with some pink flushing towards the base and the upper 2/3 is covered with a dense mat of long and conspicuous hairs.
Agricultural Features
Germination is reliable with good early growth, but because of the erect habit, ground cover is relatively slow. This variety was tested in the Frome area and on alluvial soils at Worthy Park with
satisfactory results. Observations of its performance in nurseries on the irrigated plains show that it is a variety of promise. The juice quality is comparable to that of HJ5741. It is of intermediate
resistance to smut and resistant to rust and other common leaf diseases, but has not been tested for mosaic.
Recommended for the Frome factory area and the Worthy Park and Bog Walk areas, and for limited extension in the irrigated areas. It is not to be used in fields coming out of heavily smut-affected HJ5741.
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BJ7015 Parentage: UCW5465 x B41227
Common Name: "Dragon"
BJ7015 is currently the most promising recent selection and is being multiplied for extensive planting. It resembles UCW5465 but the stalks are a paler purple-green and are also usually rather larger
and somewhat less uniform than those of UCW5465. The large and prominent inner auricle (auricles are inconspicuous on UCW5465) is also a distinguishing feature.
Brief Botanical Description
Large medium-thick stalks, yellowish-cream in the area of the bud, elsewhere yellowish-green where unexposed, but quickly flushing pinkish brown when exposed. There is a distinct white wax band
of about 0.5cm just below the leaf scar, and on older joints occasional small whitish patches or striations. Except at the wax band the wax covering on the internodes is light. Internodes are cylindrical
to slightly curved and rather long and smooth. Buds are large, round/ovate and pointed with a tuft of apical hairs and fairly small wings. Buds extend from the leaf scar to the upper margin of the
growth ring and there is a slight bud groove. Leaves are rather broader and longer than those of UCW5465. The collar is greenish-brown, wax covered, the sheaths green and usually flushing pink with
exposure. Distinguished from other "red canes" by large pointed buds and prominent auricles.
Agricultural Features
Germination is not problematic, elongation is fairly rapid but tillering not as rapid and profuse as in UCW5465, but continues over a long period. Stalks emerge somewhat at an angle from the ground
but this is not constant so that the stools have a rather untidy appearance. It is not free trashing as UCW5465. BJ7015 appears to give high cane yields producing large heavy and dense stalks. Its juice
quality is good, being equal to, or just slightly less than that of HJ5741. Arrowing mostly of the single oldest tiller in the stool - has been observed in 1979. BJ7015 appears adapted to a wide range of
soil types. It is highly resistant to smut, rust and the common minor fungal leaf diseases (distinguished from BJ6811 which it also resembles by the susceptibility of that variety to rust and brown spot).
It has not been tested for mosaic resistance.
Recommended for general use and planting throughout the year in Frome, Holland, Appleton, Hampden and Long Pond factory areas. Also is promising in Worthy Park and Bybrook areas, but is
insufficiently tested in the irrigated area.
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BJ7033 Parentage: UCW5465 xNCO310
Common Name: "Gaulin"
May be recognised by its erect, reddish stalks with distinct bud groove and rather broad, flat buds.
Brief Botanical Description
The stalks are medium-thick, erect, of variable colour, but mostly reddish brown to dark red and covered with a heavy wax bloom. Internodes are cylindrical to slightly curved. The bud is round with a
well developed wing which starts at the mid point of the bud and just reaches the growth ring. The bud is set in a depression which extends upwards to the internode to form a very prominent bud
groove. The leaf blade is dark green, of medium width and held at a rather wide angle to the stalk. The collar is light green; the inner auricle is well developed, this may be used to distinguish this
variety from UCW5465. Very few hairs are present on the leaf sheath, which is green with purple flushes on the edges and towards the base.
Agricultural Features
Germination good and tillering even with very few late suckers produced. Lodging occurs at high yields but canes fall in an orderly fashion, i.e. not in a tangle. Trash is shed freely leaving rather clean
stalks. Cane yields and juice quality are good and the variety is widely adapted. It is resistant to rust but moderately susceptible to smut and has not been tested for mosaic.
Recommended for all ecological areas of the island, however, it is not sufficiently resistant to smut for use in fields coming out of smut infected varieties nor in areas where significant areas of HJ5741
still remain, therefore it should not at this time be planted in the Frome, Appleton, and Long Pond factory areas. For use in Monymusk, Bernard Lodge, Duckenfield, Worthy Park and Gray's Inn factory
areas. Nurseries should be stool-rogued for smut.
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CO331 Parentage: CO213 x CO214
Common Name:
This is a variety for thin droughty hillside lands and is only recommended for planting as a stopgap because of its disease resistance. It is a thin stalked, rather tough and trashy red cane.
Brief Botanical Description
Stalks are erect, mostly pinkish-red, but creamy-yellow near the bud. Internodes are long, cylindrical, often with longitudinal cracks. Leaves are mild green, erect, drooping downwards about 2/3 along
their length. Sheaths are green with purple flushing, clasping the stalks tightly and not readily shed. Buds are ovate, medium-sized with a broad angular wing.
Agricultural Features
Germination is not problematic and the variety tillers very profusely forming erect, dense stools which have a very leafy and trashy, though tidy appearance. The main value of this variety is in its
hardiness, drought tolerance, ratooning ability and resistance to smut and rust. However, its poor milling quality, i.e. high fibre and poorer than average juice quality limits use only to those areas where
better varieties will not grow and ratoon satisfactorily.
Recommended for thin droughty hillside lands in Trelawny, St. James and Hanover.
BJ7451 Parentage: UCW5465 x CR6101
Common Name:
BJ7451 is characterized by its long joints, erect growth, purplish-green stalks and tendency to lodge with age.
Brief Botanical Description
The stalks are long, of medium thickness and purplish-green, becoming purplish on full exposure to light, quite erect but with a tendency to lodge. Blotches and corky patches are present on older joints. Internode cracks and bud grooves are absent. There is a thin coat of wax on the internode with black deposit from microbial growth common on older internodes. The internodes are cylindrical, slightly zig-zag, long and smooth. Wax ring is well defined on the internodes. The root band is of medium width, creamish to pale green in colour with very distinct root initials of similar colour. The growth ring is quite distinct and varies in colour from pale green to purplish-green. Buds are small and round/ovate with a small tuft if apical hairs and small bud wings. The bud is inserted above the leaf scar slightly touching the growth ring. The bud has a creamish-green colour when young, becoming greenish-brown when mature. The leaves are of medium length and width and dark green in colour. The leaf sheath is purplish-green in colour with whitish deposit. Auricle is present. Distinguished from BJ7452 by the relatively small bud and the colour changes on exposure to sunlight. The variety rarely arrows in Jamaica.
Agricultural Features
Germination is usually very rapid and reliable and tillering is quite rapid and profuse. Stalks emerge quite erect from the ground, giving the stool a very tidy appearance. The variety is free trashing and
appears to be very productive, giving good cane yields. The juice quality is good and fibre content is higher than average. The rationing ability is considered reliable and it appears to be adapted to a
wide range of soil types and ecological conditions.
Recommended for early mid-season plantings on alluvial, clay loam soils and heavy clay soils in the Wet West, Irrigated and Dry North Coast areas. It is also suitable for planting in the Worthy Park area.
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BJ7132 Parentage: B58230 x B55362
Common Name:
BJ7132 is recognized by its medium grey-green stalk, excessive trashiness and the pale green foliage.
Brief Botanical Description
The stalks are erect greyish-green to pale green. The internodes are of medium length, cylindrical with a thin wax coat from leaf scar to growth ring. Patches of black deposit from microbial growth
extend from growth ring to mid-section of internode. Root band is creamish when young, becoming greyish with age. Root initials are distinct and similar in colour to root band. The growth ring is
distinct and pale green in colour. Bud groove is not very distinct and internode cracks are absent. Buds are round, light grey when young becoming greyish with brownish tinge when old. Bud is
inserted above leaf scar and slightly below the growth ring. Bud wings are present but are very small. Leaves are erect, wide in the middle, gradually tapering to the tip and pale green in colour. The
collar is greyish-brown in colour and the auricle is distinct. The leaf sheath is reddish-brown with sparse distribution of sheath hairs.
Agricultural Features
Good germination is obtained from immature canes or nursery material. Tillering is rapid and profuse. Excessive trashiness gives field very untidy appearance. The stalks emerge from the ground quite
erectly. BJ7132 retains the trash and burns readily. Cane yields and juice quality are good. It is a tough, trashy cane which may be difficult to harvest green. Rationing is strong and reliable, resistant
to rust, smut and mosaic. It rarely arrows.
Recommended for planting early to mid-season on clay loam soils (non-saline) in the irrigated areas where it does very well. Except for Appleton, where it performed moderately in comparison with
UCW5465, it has not been sufficiently tested outside of the irrigated areas to allow for wider recommendations at this time.
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MY54129 Parentage: B42231 x CO453
Common Name:
MY54129 has no outstanding botanical features by which it may be readily distinguished from other varieties. It is quite erect, is brownish-green in colour and arrows heavily in some areas.
Brief Botanical Description
The stalks are erect, of medium thickness and brownish-green in colour. Internodes are medium in length, cylindrical and slightly zig-zag. Young internodes tend to be brownish, becoming
brownish-green with age, suffused with purple upwards from the leaf scar, on long exposure to light becoming reddish brown. Thick wax coat often gives a greyish appearance. Growth ring is raised
and greenish-brown in colour. Root band is medium in width, creamish on young node becoming greenish-brown with age. Root initials have similar colour as root band. Bud is ovate, inserted above
leaf scar and may extend above growth ring. The bud is slightly protruded when mature. Bud wings are present and quite distinct. The leaves are small in length, erect but curved at the tips. The leaf
sheath is reddish brown when old. Auricle is present and quite distinct.
Agricultural Features
Germination is generally good and reliable. It emerges quite erectly from the ground. Poor field coverage is provided during early stages of growth because of the small leaf size. Tillers rapidly and
profusely. The juice quality and cane yields are good. It has also shown good rationing ability. It is free trashing and handles satisfactorily. It is susceptible to rust but resistant to smut and mosaic. It
is tolerant to saline conditions and appears to be adapted to a wide range of soil types. It arrows heavily in some areas.
Recommended for planting early to mid-season on clay loam soils (saline and non-saline) in the irrigated and the Dry North Coast areas.
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BJ7028 Parentage: UCW5465 x NCO310
Common Name:
BJ7028 has no very conspicuous botanical features to make identification easy. It is erect, with medium to thick stalks which are olive-green in colour.
Brief Botanical Description
Young stalks are erect and olive-green in colour. The internodes are of medium length, cylindrical becoming very slightly zig-zag. Young internodes are generally olive-green becoming purplish-green
at maturity. Internode cracks are present. There are no bud grooves. There is a heavy wax covering on internode with patches of black deposit from microbial growth. Root initials are prominent,
cream coloured when young, becoming greenish-purple with age. Root band is of medium width and greenish-purple when mature. The growth ring is slightly raised and purplish-green in colour. Wax
ring is quite distinct on internodes. The bud is round and is attached between leaf scar and growth ring. It is slightly protruded on older nodes. There is a distinct bud wing. Young buds are pale green
in colour becoming purplish-green with age. The leaves are of medium length and width. The leaf sheath is greenish-purple with sheath hairs sparsely distributed. The auricle is quite distinct.
Agricultural Features
Germination is quite reliable and rapid under good growing conditions. Tillering is rapid and profuse. It emerges from the ground very erect and provides early coverage. The early growth is very
vigorous. The trash is loosely held, falling off at maturity. The juice quality and cane yields are good. It appears to ratoon well on medium to heavy non-saline soils. It is resistant to smut and mosaic.
Recommended for planting throughout the season on medium to heavy non-saline clays in the irrigated areas. It is also suitable for provisional extension in the Bog Walk area.
BJ7262 Parentage: B6816 Polycross
Common Name:
BJ7262 can be recognized by its erect pale yellow to yellowish-green stalk and clean appearance.
Brief Botanical Description
Stalks are erect, of medium thickness with tendency to lodge. Internodes are cylindrical, yellowish-green where unexposed, becoming pale yellow on full exposure to light. The internode tends to be
slightly zig-zag. The nodal area (growth ring, root band and leaf scar area) is similar in colour to the internode. Internode cracks and bud grooves are absent. The bud is small, round/ovate, flat on
young nodes, becoming slightly protruded with age. The bud is inserted above the leaf scar and may extend to the growth ring. Bud wings are present but small. The leaves are of medium length, very
erect from the base but drooping towards the tip. The collar is pale green. Auricle is present but very small. The leaf sheath is greenish-brown with light mat of hairs.
Agricultural Features
Germination is very good when young nursery material is planted. Tillering is moderate ad not very profuse. Lodging occurs at high yields. Trash is shed freely, leaving very clean stalks. It appears to
be adapted to the high rainfall areas. It arrows lightly in the irrigated area. Ratooning ability is generally good. The juice quality and cane yield are moderate. It is resistant to mosaic and smut diseases.
Recommended for early mid-season planting on alluvial to light clay loam soils in the Worthy Park and Bog Walk valley areas.
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BJ7230 Parentage: NCO310 Polycross
Common Name:
This variety is characterized by its erect, small to medium stalk, greenish-yellow colour and dirty appearance, small cracks and thin wax covering.
Brief Botanical Description
The stalk is erect, small to medium, pale greenish-yellow, with light wax covering. The internodes are conoidal, of medium length with light wax covering and black deposit of microbial growth that
gives a very dirty appearance. There are internode cracks but no bud grooves nor striations. Growth ring is raised, creamish when young, becoming pale green when old. Root band small, creamish to
green. The wax ring is distinct. Buds are small, pale green, round, inserted close to the leaf scar but not extending to the growth ring. Bud wings are small. Leaves are small and erect. Leaf sheath
reddish-brown when old with light mat of sheath hairs. Auricle present and very distinct.
Agricultural Features
Germination is rapid and reliable. Stalks emerge erect from ground but lodging may occur at high yields. Tillering is rapid and profuse, resulting in very good cane yields. The juice quality is also very
good. It appears to be adapted to a wide range of soil types. It is, however, susceptible to smut, but resistant to rust and mosaic.
Recommended for planting on very fertile clay loam and alluvial soils in the Irrigated Wet West and Worthy Park areas. It is not to be planted in fields coming out of smut-affected varieties. It is
suitable for planting throughout the season.
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BJ7465 Parentage: B62163 Polycross
Common Name:
This variety is characterized by its very erect growth reddish-brown stalk and dark green leaves. It is a recent selection that is being extended rapidly in the rainfed areas, but it appears to have wide adaptation.
Brief Botanical Description
The stalks are erect and medium in length and thickness. The colour of the stalk is reddish-brown. The internodes are conoidal, of medium length and covered with thick wax coat. The wax ring is
well defined. The growth ring is pale green when young, becoming brownish when mature. The root band is medium in width and brownish in colour on mature nodes. Root initials are not very
prominent. Internode cracks and bud grooves are absent. The buds are small and round and vary in colour from pale green to brownish-green. Buds are against the leaf scar and extend above the
growth ring. Bud wings are present but very small. The leaves are medium in length and dark green in colour. Leaves are erect and smooth on the surface. The leaf sheath is purplish-green with a
dense mat of hairs. Auricle is present but very small.
Agricultural Features
Germination is rapid and reliable. It emerges erect from the ground. Tillering is usually rapid and reliable and early growth and elongation very good. It is free trashing, giving the stalk a clean
appearance. The cane yield is better than, while the juice quality jut approaches UCW5465.
Recommended for limited extension on clay loams (non-saline) in the irrigated areas. It is also suitable for extension on the light clays in the Wet West and Dry North Coast Areas. It has also been
very promising in experiments in the Wet East (Duckenfield).
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BJ7504 Parentage: B4906 Polycross
Common Name:
The main distinguishing features of this variety are the long greenish-brown internodes covered with thick wax,cracked with corky patches or striations.
Brief Botanical Description
Stalks are fairly erect, medium to thick, greenish-brown with slight flushes of purple when exposed to light. There is a tendency to lodge. The internodes are long and of medium thickness, cylindrical
with cracks and corky patches or striations. A heavy wax cover often gives internodes a greyish-brown appearance. The wax ring is very distinct. There are no bud grooves. The root band is pale green
on young nodes becoming brownish-green when mature. Root initials are prominent and brownish-green in colour. Buds are round with prominent bud wings. Buds are inserted above leaf scar, may
reach the growth ring with wings often extending above the growth ring. Young buds are pale green with brownish tinge becoming reddish-brown when old. Leaves are dark green, of medium length,
slightly narrower at sheath junction, with pale greenish-brown collar. The leaf sheath is usually greenish-brown.
Agricultural Features
Germination is rapid and reliable. Tillering is also rapid and profuse. Early growth very vigorous, giving good coverage. It emerges erect from the ground but may lodge at high yields. The variety is
free trashing and is acceptable to cane field workers. It ratoons well under good conditions. The juice quality and cane yields are good and BJ7504 appears adapted to a wide range of soil types. It is
resistant to smut, mosaic and rust. It rarely arrows.
Recommended for planting early to mid-season on clay loam soils in the Wet West areas and for limited extension on the clay loam (non-saline) in the irrigated areas.
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BJ7452 Parentage: UCW5465 X CR6101
Common Name:
BJ7452 is recognised by its semi-erect, dark green stalk and very waxy internodes. Internodes are somewhat shorter than those of BJ7451 and the buds may be larger than in BJ7451 in some areas
(Frome and Worthy Park) and may extend above the growth ring. BJ7452 is a promising recent selection that is now being multiplied rapidly for extension.
Brief Botanical Description
The stalks emerge at a slight oblique angle and curve upwards as they elongate, are of medium length and thickness, dark green suffused with slight purplish colour particularly on young internodes.
The internodes are of medium length with blotches and corky patches or striations. The wax ring is well defined on young internodes. Internode cracks and bud grooves are absent. The root band is
pale green in colour on young nodes, becoming green with age. Root initials are prominent and are similar in colour to the root band. Growth ring is slightly raised, pale green in colour on young joints
becoming dark green with age. The bud is inserted just above the leaf scar touching the growth ring and may extend above the growth ring. The bud is ovate to rather pointed, with prominent bud
wings. The colour varies from pale green when young to green with brownish tinge when old. The leaves are short to medium in length and of medium width. The leaf sheath is purplish-green in
colour and has a light mat of hairs.
Agricultural Features
Germination and tillering are rapid ad reliable, elongation is slower than in BJ7451. The juice quality is comparable with UCW5465. The variety is free trashing and presents no difficulty for cane field
workers. It ratoons rapidly and reliably. The stalk emerges somewhat at an angle from the erect position. The variety appears to be quite widely adapted to a range of soil types. It is moderately
resistant to smut and resistant to mosaic. It rarely arrows and appears to be tolerant to saline conditions.
Recommended for early to mid-season planting on alluvial and clay loam soils (saline and non-saline). It should not be planted on very heavy clays. It has been very promising in the irrigated, Dry
North Coast and Worthy Park areas. It is, however, quite suitable also for the Wet West growing areas.
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BJ7627 Parentage: B66119 X B59162
Common Name:
BJ7627 is characterised by its erect growth and medium reddish brown stalks.
Brief Botanical Description
The stalks are erect, short to medium, reddish brown becoming reddish purple with age. The internodes are conoidal, slightly zig-zag and medium in length. Blotches and corky patches are present on
older joints. There is a thin coat of wax on the internode, with black deposits from microbial growth, very common on older
internodes. Cracks are common on the internodes and the bud groove is quite
prominent. The root band is of medium width and root initials can easily be seen. The wax ring is well defined on the internodes and the growth ring is quite distinct, varying in colour from reddish
green to purple. The bud is inserted between the leaf scar and growth ring. It is triangular in shape, creamy brown, becoming slightly purplish on older internodes. The leaves are of medium length and
pale green in colour. The leaf sheath is purplish green, becoming purple when older. Very short hairs are present low down on the leaf sheath when young, disappearing with age.
Agricultural Features
Germination is usually very rapid and reliable. Tillering is quite rapid and profuse with early formation of large stools, particularly in the rain-fed areas, giving good early leaf cover. Growth is usually
steady in the absence of flowering. The stalks emerge quite erect from the ground, giving the stool a very tidy appearance. Generally, it is erect up to 30 tonnes per acre, then tends to lodge, mainly in
rain-fed areas. This variety is free trashing and appears to be quite productive, giving good cane yields. The juice quality is better than in BJ7015 and the fibre content slightly higher than average.
Ratooning ability is considered reliable in this variety and it appears to be tolerant to stress conditions such as salinity, high weed density and moisture. It also appears to be adaptable to a wide range of
soil types and ecological conditions.
Recommended for mid-season planting on clay loam and clay soils in the Wet West, Irrigated Dry North Coast, Worthy Park and Bog Walk areas. It is resistant to smut and mosaic.
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BJ7314 Parentage: B63118 X HJ5741
Common Name:
Brief Botanical Description
Stalks of BJ7314 are quite erect. The tend to be thin to medium thickness. The internodes are medium to long cylindrical or conoidal. They are greenish grey becoming purplish on exposure to
sunlight. There is well developed wax ring and medium to heavy wax covering. Bud grooves are absent. Root band of medium width and greenish in colour, root initials are slightly tinged with purple.
The bud is ovate and appears green when young becoming darker with age. Wings are of medium width. The point of the bud extends above the growth ring. Leaves are small and very erect from the
base becoming slightly tinged with purple when older. The auricle is very small. BJ7314 rarely arrows. The main distinguishing feature of this variety is its very erect greenish grey stalk with heavy
wax covering.
Agricultural Features
Germination is usually rapid and reliable when good seed material is used. Tillering is rapid. Early growth is usually quite vigorous. It is free trashing. BJ7314 appears to be a good ratooner
particularly in the rainfed areas. The juice quality is very good while cane yield is moderate. It is a valuable variety in the rainfed areas on clay loam soils. It is resistant to smut and is recommended for
clay loam soils (non-saline) in the rainfed areas (Appleton, Frome and Tropicana).
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BJ82156 Parentage: B75584 X BT65152
Common Name:
Brief Botanical Description
Stalks of BJ82156 are erect and of medium thickness and length. The colour of the stalk is greyish - green, becoming greyish-yellow. Internodes are cylindrical, of medium length and covered with a
dull grey wax coat. The wax ring is well defined. The growth ring is pale green when young, becoming green when mature. There are no internode cracks. Buds are round and tend to be pale green in
colour. The buds inserted between the leaf scar and the growth ring. Bud grooves are absent and the root band is very narrow, creamy white when young, becoming green when old. Bud wings are well
defined. Leaves are of medium length and width. The blades are dark green arching upwards from base and beginning to droop towards the top. Leaf sheaths are slightly hairy and vary in colour from
light green to pale green with a tinge of purple. BJ82156 appears not to arrow. The main distinguishing features of the variety are its uniform erect stalks and vigorous growth habit.
Agricultural Features
Germination is fairly good and reliable but planting material should be good. Tillering is quite rapid with early formation of large stools and very good leaf cover. The growth pattern is usually steady.
It is generally quite erect with yields up to 35 tonnes cane per acre, then slight lodging may occur. It is free trashing with medium leafy top. It appears
to ratoon quite well. Both juice quality and cane
yield are better than for BJ7015, BJ7452 and UCW5465. It is also resistant to smut. BJ82156 is recommended for limited extension on clay loam soils (non-saline) in the rainfed and irrigated areas.
Further information is being gathered on its adaptability over a wider ecological area. It has been very promising in experiments and commercial fields at Worthy Park.
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BJ82119 Parentage: B62138 X B70574
Common Name:
Brief Botanical Description
The BJ82119 stalk emerges from the base slightly curved but becomes erect with age and later tends to lodge. The internodes are medium in length and thickness. Young internodes are uniform purplish-red with medium wax covering. A small number of cracks are visible on the stalk. The bud is inserted above the leaf scar and extends slightly above the growth ring. Wings are well defined. Auricle is present. The leaf sheath is purplish-green in colour, smooth, with light wax coat. The variety does not arrow. Leaves are medium in length and width with a pale green colour. The main distinguishing feature of BJ82119 is its medium purplish-red waxy stalk.
Agricultural Features
Germination is reliable and fairly good. Tillering is fairly good providing good coverage. Growth is steady and elongation fairly rapid. Trash is loose and easily removed. BJ82119 appears to ratoon
fairly well. Cane yield is usually quite high while juice quality is moderate. BJ82119 is a widely adapted variety that has been promising on clay and clay loam soils in all areas. It is moderately
susceptible to smut and is being recommended for gradual island-wide extension.
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BJ7548 Parentage: UCW5465 X CR6101
Common Name:
Brief Botanical Description
The stalks of BJ7548 are erect but tending to lodge with age. The internodes are medium to long, cylindrical and quite often successive joints are zig-zag. Stalks are reddish-brown with well developed
wax rings and medium wax covering. Corky streaks and small cracks are very common. The growth ring is greenish, becoming darker with age. The buds are large triangular and inserted between the
leaf scar and the growth ring. Wings are well developed. Leaf blade is of medium length and width. Young leaves are mainly erect bending towards the tip. The leaf sheaths are mainly green partly
reddish purple becoming more extensively purplish with age. The leaf sheath is quite smooth. The main distinguishing feature of the variety is the very conspicuous striation on the internodes. BJ7548
arrows lightly.
Agricultural Features
Germination is rapid and reliable from young cane and tops. Tillering is quite rapid and early growth and elongation are good. The variety is free trashing. Both cane and sugar yields are moderate and
compare quite favorably with UCW5465. BJ7548 appears to ratoon fairly well and is resistant to smut. It is recommended for limited extension on clay loam soils in the Irrigated and Dry North Coast areas.
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BJ7555 Parentage: UCW5465 X CR6101
Common Name:
BJ7555 is a moderate yielding variety that shows adaptation to high rainfall and good soils in the irrigated areas. It is now being given prominence because of its inherent excellent juice quality and
erect growing habit makingit suited for mechanical reaping.
Brief Botanical Description
The stalks are erect, reddish-purple, showing little tendency to lodge and are of medium thickness. Internodes are of medium length and cylindrical in shape. Young internodes tend to olive green in
colour becoming purplish with age. The wax ring is well developed with light wax covering. Corky streaks are absent while cracks are frequent. The root band is of medium width and cream in colour;
root initials are conspicuous. Growth ring is slightly raised, cream coloured becoming green and ending to merge with root band in older internodes. The buds are inserted just above the leaf scar and
slightly overlap the growth ring. Buds are round, cream coloured, becoming tinged with brown. The leaf blade is medium in length and width. The leaf sheath is purplish green and smooth. Auricle is
present. Arrowing is not observed.
Agricultural Features
Germination is rather slow and always unreliable in old material. Tillering is moderate at first, later forming larger erect bunch of uniform canes. It is generally erect at up to 90 tc/ha, well suited for
mechanical reaping. Trashing is easily removed. Ratooning is very strong and reliable under good growing conditions. The quality is very good especially in middle of harvest. Quality often exceeds
the level of BJ7230. Limited adaptability in rainfed areas. Performs well on clays and light clays. It is resistant to smut and rust. Shows no susceptibility to other common diseases. It is a promising
variety in rain-fed and well drained soils in the irrigated areas.
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BJ8252 Parentage: B70531 Polycross
Common Name:
BJ8252 is a widely adapted erect variety of good quality. The colour of BJ8252 stalk is somewhat similar to BJ8226 especially during the early stages of growth but differs by becoming greenish yellow
when mature. BJ8252can be recognised by its erect yellowish green stalk that bears close resemblance to BJ8226 in colour and vigor especially during the early stage of growth.
Brief Botanical Description
The stalks are greyish green becoming greenish yellow when mature, erect, medium to thick. Internodes are medium to long and cylindrical. Profile slightly zig-zag. Internode cracks are absent. Wax
present on young stalks. Bud groove not well defined. Buds are round, embedded above the leafs scar and barely touching the growth ring. The root band is pale cream when young becoming darker
when mature. The leaf is pale green with slight wax coating, auricle not well defined. The variety does not arrow at the locations where planted in Jamaica.
Agricultural Features
Germination is rapid and reliable when good seed cane is used. Tillering is normally rapid forming a large close bunch and very profuse giving good early coverage, erect. Steady elongation is
maintained throughout growth. Excellent coverage at an early age. This variety is generally very erect even at high yields. It is a fairly soft, thick cane ideally suited for mechanical harvesting. It
ratoons satisfactorily under good conditions. The quality is above average and better than BJ8226. It is suited to a wide range of well drained soils under high rainfall conditions. It is resistant to smut
and rust. Pokkah boeng may sometimes appear, especially where early growth is vigorous. Shows no susceptibility to other common diseases. This variety has been successfully grown on both clay and
clay loam soils a New Yarmouth and Holland respectively. Pithiness confined to upper half of stalk.
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BJ82102 Parentage: UCW5465 X C8751
Common Name:
BJ82102 has been very promising in both rainfed and irrigated areas. It appears to be a good ratooner on clay soils and germinates rapidly when good quality seed cane is planted. It has no outstanding
characteristic by which it can be easily distinguished from other varieties.
Brief Botanical Description
Stalks are semi-erect and of medium thickness. Internodes are of medium length, cylindrical or slightly conoidal. Young internodes are pale green becoming purplish green on exposure to light and
greenish on shaded side. Thick wax covering and well defined wax ring are present. Corky patches and cracks are also present. Buds are between the leaf scar and the growth ring, ovate and pale
green. Wings are rather small. Bud groove is absent. The root band is of medium width, undergoing same colour changes as internode. The growth ring is well defined changing from yellow to pale
green. The leaf blade is pale and of medium length. Erect drooping appears only near tip. Auricle is present on enfolded side. The leaf sheath is green becoming purplish with age. This variety appears
not to arrow in Jamaica.
Agricultural Features
Germination is reliable, but establishment is slow when moisture is inadequate. Tillering is rapid with spreading habitat at first. Late suckers are generally few. There is rapid elongation with good ground cover at 5 months. Provides excellent control of weeds when growth is normal. This variety is quite erect up to 80 tc/ha. Thereafter lodged. Prone to damage by wind. Trash is loosely held or easily stripped. It is very easily cut,, has a good uniform height which makes handling easy with mechanical harvesters. It ratoons well except under very dry conditions. Juice quality is good from all tests done from early to mid-season. Fibre is moderate. It has performed well on clay soils at Holland, New Yarmouth and Monymusk. It is resistant to smut and rust. Mild reaction to pokkah boeng has been observed in wet periods. Appears resistant to other common diseases. BJ82102 is a very promising variety on clay soils in the irrigated and the Appleton/Holland areas. Minor damage by stalk borer has been observed in some areas.
BJ8226 Parentage: B73348 X H471914
Common Name:
The most striking physical features of BJ8226 are its early growth, vigour and erectness. In contrast with BJ82119 which is relatively slow growing and has pale green, narrow leaves, BJ8226 boasts
dark green, broad leaves that quickly form a dense canopy. Where stalks of BJ82119 are red, BJ8226 is distinctly grey green in colour. The grower who plants BJ8226 is likely to spend less on weed
control because of that early vigour, given good growing conditions. BJ8226 has already been favourably received by growers in several areas. It is well adapted for use on alluvial and medium clay
soils. BJ8226 is not unlike BJ7015 in juice quality but its erectness and free trashing habit ought to make it an even more attractive variety.
Brief Botanical Description
BJ8226 is recognised by medium to thick, waxy, grey-green stalks and large round buds. Stalks are fairly erect, with green young internodes becoming darker with age and having heavy wax covering.
The internodes are medium to long, cylindrical to slightly conoidal. Cracks are infrequent and when they occur they tend to be shallow. Buds are large, round and somewhat protuberant, extending
from the leaf scar to the growth ring. Bud wings are small and bud grooves inconspicuous. Leaves are rather broader and longer than those of BJ82119, fairly erect, arching and dark green with small
auricles. The collar is greenish and merges into a smooth leaf sheath with some pink flushes towards the base. The variety does not readily arrow in Jamaica.
Agricultural Features
Germination is rapid and reliable. BJ8226 tillers freely providing good early ground cover with few late suckers. It is free trashing and has remained erect with yields of up to 86 tc/ha. At higher yields
it lodges moderately. The juice quality is comparable to that of BJ7015. It tends to be slightly pithy at the top end of the stalk when young. It appears to be a good ratooner and is adapted to a wide
range of soils, but will grow slowly when affected by severe moisture stress. It is of intermediate resistance to rust, smut and other common leaf diseases. BJ8226 has not been tested for mosaic. This
variety was tested on clay and clay loam soils at Worthy Park, Frome and New Yarmouth with satisfactory results. Observations of its performance in nurseries in the dry north coast shows that it has
promise in that area as well. BJ8226 is recommended for early to mid season reaping.
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BJ82105 Parentage: B69632 Polycross
Common Name:
BJ82105 is particularly favoured at this time for its apparent resistance to both smut and rust diseases as well as its
satisfactory juice quality and cane yield. The main distinguishing features of BJ82105 are its erect reddish purple internode.
BOTANICAL DESCRIPTION
Stalk: Erect, of medium thickness with little tendency to lodge. Internodes are of medium length, with light to moderate wax coating. The stalk configuration is cylindrical. Old internodes maintain a reddish purple flush overlaid with black spots. Internode cracks are absent. Root band is of medium width and reddish purple in colour on older joints but creamy on young joints, while root initials are tinged purple. The root primordia are not very conspicuous. Growth ring is well defined, reddish purple on older joints.
Buds: Inserted above leaf scar and slightly touching growth ring. It is distinctly ovate in shape, reddish in colour developing a purple tinge on older internodes. Bud wings are not well developed.
Leaf: Blade of medium length, typically dark green, broad in the middle and tapered toward the tip. Leaf sheath is greyish purple with medium wax covering. Sheath hair is absent.
Arrowing: BJ82105 does not normally arrow in Jamaica.
AGRICULTURAL FEATURES
Germination: Good, but planting material and conditions must be good.
Tillering: Quite rapid and profuse, thereby giving excellent ground cover. Late tillers are scarce, except in lodged fields.
Growth pattern: Elongation quite rapid, providing good early cover.
Habit: Generally very erect to maturity.
Trashing: Self-trashing.
Ratooning: Reliable under good conditions
Quality: Above average juice quality throughout the harvesting season.
Adaptability: BJ82105 appears to be widely adapted. It is suited for clay loam soils in rain-fed and irrigation areas.
Mechanical Harvesting: Suitable for mechanical harvesting.
Disease Reactions: It is resistant to smut and has so far shown no susceptibility to the new orange rust or the old brown rust.
General: The variety has achieved importance in the Appleton area where it has been extensively grown for a number of years. Favourable experimental yields were recorded in the Bernard Lodge area
BJ7938 Parentage: BT73824 x B71415
Common Name:
The most distinctive features about BJ7938 are its semi-erect stalks, trashiness, heavy wax covering and greyish yellow colour.
Brief Botanical Description:
Stalks: Semi-erect and of medium thickness. Internodes are cylindrical, medium in length with well developed wax rings. Young internodes are pale grey becoming grey or dirty yellow with heavy wax covering and patches of black. There is no bud groove and the root band is pale grey becoming yellowish. Root initials are not well defined. Growth ring is creamy becoming yellow on older joints.
Buds: Inserted above the leaf scar touching but not extending beyond growth ring. The buds are round varying in shape from oval to ovate and flecked with brown. Bud wings are present.
Leaves: Blades are short to medium, erect at the base but soon form broad arches that droop at the tips. Auricles are well developed and leaf sheaths are smooth with light wax covering. The variety tends not to arrow.
Field Characteristics
Germination: This a hardy variety. Germination is rapid when young seed cane is planted.
Tillering: Quite rapid with good early formation of large stools and leaf cover.
Growth Pattern: Growth is usually slow during the early months but will accelerate, as canes advance in age, giving very good ground coverage.
Growth habit: Generally semi-erect.
Trashing: Persistent but loosely held trash.
Ratooning: Reliable in the irrigated area especially at New Yarmouth, Frome and Holland.
Quality: Sucrose content is above average.
Adaptability: Shows signs of wide adaptability with good performance particularly in the irrigated area and at Holland on light and medium clays; has performed satisfactorily as plant cane and moderately as standovers in the irrigated area.
Disease status: Resistant to smut and rust. (No rating for leaf scald).
General Remarks: BJ7938 is recommended for use on light to medium well drained soils in the irrigated and rainfed areas. In the New Yarmouth area second ratoon fields have averaged 85 tc/ha.
BJ78100 Parentage:B71368 polycross
Common Name:
BJ78100 is distinguished by its clean, erect, purplish red stalk that closely resembles BJ7627 and UCW5465.
Brief Botanical Description
Stalks: Erect, of medium thickness with little tendency to lodge. Internodes are medium to long, cylindrical. Young internodes are reddish purple, becoming purplish red with age. Corky patches are common, cracks occur frequently on some canes and internode wax is lightly distributed. Bud groves are fairly well expressed and root band well defined. The growth ring is reddish and prominent. Internode wax is present on most internodes.
Bud: Round and inserted between the leaf scar and growth ring. It is greenish in colour when young becoming reddish with age. Bud grooves and wings are present.
Leaves: Blades are of medium length not wider than the sheath becoming slightly bent near the top. Auricle is present. Leaf sheath is pale on young plants becoming purplish on mature plants.
Field characteristics
Germination: It germinates well when good seed cane is used.
Tillering: Quite good; early growth and elongation are good.
Growth Pattern: Grows vigorously providing good early ground cover.
Growth Habit: Generally very erect making the variety highly suited for mechanical harvesting.
Trashing: Free trashing.
Ratooning: Good ratooning ability in the irrigated and dry north coast areas.
Quality: The sucrose content is average.
Adaptability: The variety has performed well on light as well as clay soils in the irrigated and Long pond areas.
Disease Status: It is resistant to smut and rust. (There is no rating for leaf scald).
General Remarks: BJ78100 is recommended for use on light to medium clay soils in the Irrigated and Dry North Coast areas. It appears to be tolerant to salinity and other stress factors thereby making the variety a good replacement for UCW5465