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Articles by S.M. Mahbub Ali
Total Records ( 3 ) for S.M. Mahbub Ali
  A.B. Siddique , D. Wright and S.M. Mahbub Ali
  An experiment was conducted to identify the effect of time of sowing on the quality of pea seeds. Eight sowing dates from 01.03.99 to 07.06.99 with an interval of fifteen days were tested for covering a wide range of environmental variations. Seed quality was determined by using germination percentage, emergence percentage, controlled determination test (ageing test) and electrical conductivity test. Starch, protein, water soluble carbohydrate and fat percentages of seeds from four selected sowings were also determined. Germination percentage of unaged seeds obtained from sowing 1 to 5 i.e., from 1-3-99 to 26-4-99 was high and similar and then decreased. This decrease was only significantly lower of seeds obtained from last sowing date (07.06.99). Vigour of aged seeds was markedly lower in 1, it then increased and was relatively constant between 2 and 5 (15.03.99 and 26.4.99) and after that it decreased to 8%. In all treatments emergence percentage of unaged seeds was over 70%, but in aged seeds, emergence percentage was decreased markedly after 5.
  M.G. Mostofa , M.R. Islam , A.T.M. Morshed Alam , S.M. Mahbub Ali and M.A.F. Mollah
  A study was carried out with 33 Kenaf (Hibiscus cannabinus L.) genotypes of diverse origin to obtain information on genetic variability, heritability and correlation between fibre yield and various yield attributes. A substantial variability was observed among the genotypes for all 8 characters studied. The character dry stick weight per plant exhibited the highest phenotypic and genotypic coefficients of variation (20.30, 14.11) followed by dry fibre yield per plant (18.06, 12.05) and green weight per plant (17.25, 11.41). Heritability ranged from 98.36 for days to 50% flowering to 15.97% for node number per plant. High heritability coupled with high genetic advance was observed for days to 50% flowering and green weight per plant suggesting the dominant role of additive gene effects in the expression of these two characters. Correlation studies revealed that fibre yield was positively and significantly correlated with all the characters studied except node number per plant and days to 50% flowering. The character node number per plant was negatively associated with fibre yield. To enhance yield status of kenaf, the characters plant height, base diameter, green weight and stick weight could be used as selection criteria.
  A.B. Siddique , D. Wright and S.M. Mahbub Ali
  An experiment was conducted to identify the effects of time of sowing on the quality of flax seed. Eight sowing dates from 01.03.99 to 07.06.99 with an internal of fifteen days were tested for covering a wide range of environmental variations. Seed quality was determined by using germination percentage, emergence percentage and controlled determination test (ageing test). Starch, protein, water soluble carbohydrate and fat percentages of seeds from four selected sowings were also determined. Germination percentage of unaged seeds ranged from 94 to 99%. Germination percentage was slightly lower at the last sowing date but the effect was not significant. Raising seed moisture content followed by ageing at 50oC for 36 h decreased germination percentage markedly. In aged seeds germination increased from S1 to S4 and then decreased as sowing was delayed after that. Emergence percentage of unaged seeds ranged from 73 to 95%. Raising seed moisture content followed by ageing at 50oC for 36 h decreased emergence percentage. Sowings from 01-03-99 to 12-04-99 were given o vigorous seeds but sowing made on 12-04-99 had the highest vigour.
 
 
 
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