Browsing by Author "BHUIYAN, MOHAMMAD SARFUDDIN"

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    AGRONOMIC AND GENETIC PERFORMANCE OF HYBRID MAIZE (Zea mays L.) VARIETIES INFLUENCED BY THREE LEVELS OF IRRIGATION
    (DEPARTMENT OF GENETICS AND PLANT BREEDING, SHER-E-BANGLA AGRICULTURAL UNIVERSITY, DHAKA, BANGLADESH, 2012-07) BHUIYAN, MOHAMMAD SARFUDDIN
    The present piece of research work was carried out at the field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka- 1207. from December 2010 to May 2011 to determine optimum water requirement for the cultivation of hybrid maize varieties. There were two factors in this experiment, a) four hybrid maize varieties: V1 (BAR! Hybrid Maize-5). V2 (Pacific 60), V3 (NK 40) and V4 (Ajanta) and b) three levels of irrigation: 11 = Two irrigations at 25 and 50 DAS, 12 = Three irrigations at 25. 50 and 75 DAS and 13 = Four irrigations at 25, 50, 75 and 100 DAS. respectively. Selected varieties and irrigation levels individually had a few significant effects on the pimit characteristics of maize but had significant effect on yields and yield contributing characters. Almost all the plant and yield contributing characters were significant except days to 6 leaf stage and days to bud initiation stage. The higher yields were recorded in V1 13 (7.92 t ha'), V413 (7.83 t ha') and V213 (7.45 ha') which were statistically identical with V112 (7.40 t hi'), V2I2 (6.87 t ha') and V412 (6.80 ha), respectively. The highest water use efficiency (0.122 t ha4cm 1) was found in V211 treatment combination followed by V111 (0.121 t ha'cm'), V112 (0.120 t hi'cm'). The highest benefit cost ratio (BCR) was obsen'ed (2.37) in both V113 and V112 treatment combination. BAR! Hybrid Maize-S performed better among the four varieties tested in this experiment. Moreover, total average water saving in one hectare land for maize cultivation by adopting 12 irrigation treatment over Ij is 4,49.837 gallons. Among the treatment combinations, V112 (BARI Hybrid Maize-5 with three irrigations at 25. 50 and 75 DAS) was the best combination for maize cultivation.
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    SEED YIELD AND OIL QUALITY OF RAPESEED AS iNFLUENCED BY DATE OF PLANTING
    (DEPARTMENT OF AGRONOMY, 2006) BHUIYAN, MOHAMMAD SARFUDDIN
    An experiment was conducted at the Agrictilture Research Station, Bangladesh Agricultural Research Institute, l3urirhat, Rangpur during rahi -,Cason of 2004-05 to find out optimum planting time for the newly selected genotype I3CYS-03. There were five planting dates viz. October 20, October 30, November 10, November20 and November 30. Significant variations due to dillerent planting dates were observed in days to maturity, plant height, number of primary branches plant', seed yield plant 4, siliqua plant'. seeds siliqua'. 1000-seed weight, seed yield hi', biological yield ha 4and dry weight plant'. Results showed that the highest seed yield (1.86 t ha') was obtained from the second planting (October 30) and it was significantly different from the yields of all other dates of planting. Yield contributing characters were also found higher in the plants of second planting. The seed yield (1.47 t ha') of last planting was also satisfactory because of the prolong winter season prevails in the northern part of the country. Variations in respect of oil content in seed and fatty acid composition of oil were also obtained from different planting dates. Seeds obtained from the early plantings contained higher oil percentage in seed and lower concentration ofenicic acid in oil. Variations of oleic, linoleie and linolenic acids in oil also observed due to dillèmnt planting dates.