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Articles by S.M. Shahidullah
Total Records ( 2 ) for S.M. Shahidullah
  M. Ashrafuzzaman , M.A. Haque , M. Razi Ismail , M.T. Islam and S.M. Shahidullah
  Morphological attributes and yield of eight genotypes of tomato namely, J-5, Binatomato-5, BARItomato-7, CLN-2026, CLN-2366, CLN-2413, CLN-2418 and CLN-2443 were studied over three seasons. Effects of seasonal and genotypic variations and their combination on plant height, number of primary branches per plant, number of flower clusters per plant, number of fruit clusters per plant, number of fruits per plant, individual fruit weight, fruit yield were significant. Fruit yield and almost all the morphological attributes of tomato genotypes were at peak in winter followed by pre-winter and summer season. Over three seasons, the genotype CLN-2413 produced the highest fruit yield followed by BARI tomato-7 producing the tallest plants with maximum number of primary branches and the highest number of fruits per plant. The genotypes Binatomato-5, CLN-2026 and CLN-2418 ranked 3rd and CLN-2366 and CLN-2443 ranked 4th with respect to yield performance. The genotype J-5 produced the lowest number of fruits per plant and fruit yield. In winter, fruits number and yield were highest in CLN-2413 while BARI tomato-7 carried the statistically same rank.
  S.M. Shahidullah , M.A. Hakim , M.S. Alam and A.T.M. Shamsuddoha
  A study was conducted to evaluate the groundwater quality at Phulpur thane of Mymensingh district in Bangladesh. Water samples from 14 deep tubewells were analyzed for pH, EC, TDS, Na+, K+, Ca++, Mg++, Fe, P, B, NO3-N, SO4–, Cl–, CO3– and HCO3–. In addition SAR, SSP and RSC were calculated following standard equations. The range of EC was 180-380 μScm–1 and SAR 0.22-0.80 and these two parameters indicated that three samples were in 'low salinity-low alkali' and 11 were in 'medium salinity-low alkali' hazard class. There was no chloride toxicity in the area. The presence of SO4–, NO3– and P were negligible. As regards boron and SSP, all waters were of 'good' to 'excellent' class. In respect of TDS all were 'fresh water'. On the basis of RSC values all samples were of 'suitable' class. As a whole, groundwater of the area can safely be used for long-term irrigation. But some of those may not be suitable for drinking and industrial uses in consideration of Fe concentration, TDS and pH values. Among the quality determining factors SSP and SAR were highly correlated where correlation coefficient was 0.97.
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