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Articles by M.J. Alam
Total Records ( 4 ) for M.J. Alam
  M. Anisuzzaman , S. Jarin , K. Naher , M.M. Akhtar , M.J. Alam , M. Khalekuzzaman , I. Alam and M.F. Alam
  A viable protocol has been developed for indirect shoot organogenesis of okra. To establish a stable and high-frequency plant regeneration system, leaf disc and hypocotyl explants were tested with different combinations of α-naphthalene acetic acid (NAA), indole-3-acetic acid (IAA),iIndole-3-butyric acid (IBA), thidiazuron (TDZ) and 6-benzylaminopurine (BAP). Morphogenic callus induction was observed in highest frequency from hypocotyl explant by culturing in MS medium supplemented with 2.0 mg L-1 NAA plus 0.5 mg L-1 TDZ. The highest percentage of shoot regeneration and highest mean number of shoot per callus mass was obtained with 2.0 mg L-1 BAP plus 0.1 mg L-1 IBA. Root formation was observed from callus induced in medium containing 1.5 mg L-1 NAA. Morphogenic difference due to explant type is clear for the studied in vitro traits. About 80% of regenerated plantlets were survived and showed new leaves development under ex vitro condition. This protocol would be useful to create somaclonal variation and to utilize transgenic approach for varietal improvement of okra.
  M.A.K. Al Azad and M.J. Alam
  A field experiment was conducted to study the popularity of different intercrops with sugarcane at Nakla thana under Sherpur district of Bangladesh during cropping year 2000-2001. Five intercrops with sugarcane combination such as potato (Solanum tuberosum), onion (Allium cepa), coriander (Coriandrum sativum), mustard (Brassica campestris) and garlic(Allium sativum) were studied against sole sugarcane crop. In respect of agronomic performances, sugarcane with potato, sugarcane with onion and sugarcane with coriander were suitable though they produce lower cane yield than sole cane. In respect of economic profitability sugarcane with potato combination was the most profitable and sugarcane with onion and sugarcane with coriander combination were 2nd and 3rd profitable combinations, respectively. In respect of adjusted yield sugarcane with potato was the best combination and sugarcane with onion was the 2nd combination than the sole cane yield. Sugarcane with mustard and sugarcane with garlic combination was found to be inferior in respect of agronomic yield, economic profitability and adjusted cane yield. Hence, The study reveals that sugarcane with potato, sugarcane with onion and sugarcane with coriander combination may be suggested as intercropping with sugarcane for non mill zone area of Sherpur district (AEZ 8) to get interim benefit from the same piece of land.
  S.K. Das , Md. Dulal Sarkar , M.J. Alam , M.G. Robbani and M.H. Kabir
  The influences of four levels of plant growth regulators on BARI Misti Morich-1 and Lamuyo varieties of bell pepper were studied at the horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh from October 2012 to March 2013. Plant Growth Regulators (PGR) was applied on bell pepper varieties which had significant effect on yield of bell pepper. Among those treatments, growth regulator 4-CPA was more potential to enhance flowering by 4.00 days earlier and it also increased number of flowers plant-1 (5%), number of fruits plant-1 (35%), fruit setting (26.02%) and yield of fruit per hacter (39%) with the varieties of Lamuyo as compared to the fruit set where hormone was not applied. The variety Lamuyo produces about 10% higher yield than BARI Misti morich-1. Among those, growth regulator, 4-CPA showed best potentiality to solve flower and fruit dropping problem of bell pepper.
  S.M. Bokhtiar , M.L. Kabir , M.J. Alam , M. M. Alam and M.H. Rahman
  The site-specific nutrient requirement of sugarcane (Saccharum officinarum) and companion crops, viz. onion (Allium cipa) and lentil (Lens culinaris) in sugarcane based cropping systems field experiments was determined under two Agro-ecological zones (AEZ), namely High Barind Tract (AEZ 26) and Tista Meander Floodplain soils (AEZ 3). The application of fertilizers for sugarcane and intercrops, onion and lentil as per soil test basis followed by dhaincha (Sesbania aculeata) significantly increased cane yield to the extent of 19 % at AEZ 26 and 45 % at AEZ 3 over the sole cane crop. Maximum cane yield (119 t ha–1) with highest BCR of Tk.4.37 was found in High Barind Tract with the application of N190 + P44 + K65 + S25 + Zn3.5 kg ha–1 to sugarcane and N55 + P18 + K25 + S6 kg ha–1 to potato. In Tista Meander Floodplain soils, application of N120 + P40 + K75 + S20 + Zn2 + Mg15 kg ha–1 and N15 + P5 + K6 + S3 kg ha–1to sugarcane and lentil, respectively produced the highest yield of 117 t ha–1 with BCR of Tk.4.25. Green manure Sesbania aculeata increased cane yields about 2 to 9 per cent and contributed 56 - 66 kg N ha–1.
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