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Articles by M.A. Quddus
Total Records ( 2 ) for M.A. Quddus
  M. Harunur Rashid , A.H. Khan , M.A. Quddus , N.E. Elahi and A. Saha
  The experiment was conducted to evaluate the modern photosensitive rice varieties, BR22, BR23, Binasail and an advanced line BR5226-6-3-3 and widely cultivated local variety Telosh for increasing the productivity of medium high land phase-2. BR5226-6-3-3 gave the highest grain yield of 4.14 t ha-1 followed by BR23 (3.96 t ha-1). The higher grain yields of BR5226-6-3-3 and BR23 were associated with higher number of filled grains panicle-1 and heavier grain weight. Economic analysis indicated that cultivation of BR5226-6-3-3 and BR23 after Boro rice gave about 36 and 31% additional gross margins than the existing local variety, Telosh.
  G.G. Das , M.A. Quddus and M.E. Kabir
  The experiment was conducted in pot culture from November 1998 to March 1999 at the Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh. Eighteen B. campestris hybrids and their 6 parents were tested for saline tolerance. The genotypes were grown in earthen pots. Mixture of soil and cowdung in 3:1 ratio was the growth media. Sodium chloride was used as the sources of salt. Two salinity levels viz., 1.43 and 12.00 dS m1 EC were maintained. There were three replications in each treatment. The genotypes were grown up to maturity and the characters germination percentage, days to germination, plant height at 25, 35 and 45 days, days to flowering, plant height at harvest, days to maturity and seed yield/ plant were studied. The analysis of variance showed that variation due to salinity levels, genotypes and interaction between salinity levels and genotypes were significant for the experiment. Comparing the mean values of 12 dS m1EC with that of the control i.e., 1.43 dS m1EC it was observed that effect of higher salinity level on different characters was very sharp in the experiment. At higher salinity level germination percentage decreased, days to germination increased, plant height decreased, days to flowering and maturity increased and seed yield/plant decreased. It was further observed that effect of salinity was more prominent up to flowering stage then it was gradually decreased probably due to watering which was necessary to raise the plants. Heterosis was estimated over mid-parent and better parent. Out of 324 heterosis values, 54 were desirable and significant over mid-parent and 39 over better parent. On the basis of desirable and significant heterotic values over mid-parent the hybrids were scored for the characters germination percentage, days to germination, plant height at 25, 35 and 45 days and days to flowering and then ranked. On the basis of rank position the hybrids Sampad x M-395, M-91, x M-27, Dholi x M-27, M-395 x M-91, Dholi x M-395, M-18 x Sampad, M-91 x M-18, M-27 x Dholi and M-27 x M-91 were found to be promising against salinity.
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