1.1 Rice (T.aman varieties):
1.1.1 Binasail:
It is a low input tall variety (135-140 cm) released in 1987, specially suitable for late transplantation after the flood water recedes which helps the rehabilitation of the people of flood prone areas.
This variety can be grown even on natural precipitation. More straw may be obtained by cultivation of Binasail. Maturity period ranges between 135-140 days.
Moreover, it matures 2-4 weeks earlier if transplantation is done in optimum time, which also facilitates growing of early winter crops. Maximum grain yield potential is 5.0 tons/ha (av. 4.2 tons/ha) if transplantation is done in normal time, while at late transplantation, grain yield ranges between 3.0 and 3.5 tons/ha. Husking recovery of grains is more than many other rice varieties. Grains are medium fine with good cooking quality.
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1.1.2 Binadhan-4:
It is also an early maturing variety released in 1998 that takes about 130-135 days to mature. After harvest of this variety, wheat/oil crops/pulses can be grown in optimum time.
It is a good variety for increasing cropping intensity. This variety is more tolerant to major diseases and insect-pests. Maximum grain yield is 5.5 tons/ha (av. 4.7 tons/ha). Grains are long and slender. Binadhan-4 produces high quality rice, which is exportable, and its local market price is higher than many other T. aman varieties. .
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1.1.3 Binadhan-7:
It is a short duration and high yielding tranplanted aman variety with good quality of rice released in 2007..
Crop duration is 110-120 days from seed to seed. As the variety of early maturing, facilitate rabi crop cultivation like potato,mustered, wheat etc. after harvesting the variety in aman season. It is more tolerant to sheath blight, leaf blight and stem rot. This variety is also more tolerant to major insect-pests specially to Brown Plant Hopper (BPH) and hispa. . It produce grain yield is 5~5.5 tons/ha. Paddy as well as the rice is long and fine. Rice is tasty and grain are bright color having higher market price. It can be transplanted little bit late as it is a short duration variety. It can also be cultivated in boro ans aus seasons. It is a very good variety for monga mitigation at northern part of Bangladesh.
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1.2 Rice (Boro varieties):
1.2.1 Iratom-24:
It is an early maturing variety released in 1975 that takes about 140-145 days to
mature during boro cultivation and 125-130 days during aus cultivation. Earliness facilitates to harvest this crop variety before early flash flood and also escapes hailstorm. Plants are semi-dwarf which do not lodge. The variety is moderately resistant to major diseases and insect-pests. Grains are finer than IR-8. Maximum grain yield potential is 8 tons/ha (av. 6 tons/ha) in boro season while 4 tons/ha (av.3.5 tons/ha) in aus season.
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1.2.2 Binadhan-5:
This variety released in 1998. Its plant is tolerant to lodging and height ranges between 110-115 cm. The variety takes about 150-155 days to mature and can produce a maximum grain yield of 8.5 tons/ha (av. 7.0 tons/ha). Grains are long, slender and bright in colour. Farmers can get more straw by cultivation of Binadhan-5. |
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1.2.3 Binadhan-6:
This variety also released in 1998. Its plant height is similar to Binadhan-5, but it bears more tillers and gives a maximum grain yield of 9.0 tons/ha with an average yield of 7.5 tons, which is higher than hybrid rice. Maturity period is about 160-165 days, i.e., slightly longer than Binadhan-5. Grains are medium bold and bright in colour. |
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1.2.4 Binadhan-8:
Binadhan-8 is a salt tolerant high yielding rice variety which is released in 2010. It is semi dwarf, early maturing and medium bold grain rice variety. Binadhan-8 requires 130-135 days to mature. It is moderately resistant to bacterial leaf blight, sheath blight, brown plant hopper, stem borer and rice hispa. Under salt stress, maximum grain yield is 5.5 t/ha (average 4.5-5.5 t/ha) and in non saline area, maximum 9.0 t/ha (average 7.5-8.5 t/ha). This variety is most suitable in saline areas of Bangladesh and also other non saline areas. |
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