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Articles by Abdus Salam Khan
Total Records ( 4 ) for Abdus Salam Khan
  Zulfiqar Ali , Abdus Salam Khan and Muhammad Azeem Asad
  The response of ten different wheat genotypes to three NaCl levels i.e., control, 7.5 and 15 dS m -1 were compared. Increase in salinity level caused significant reduction in plant height, fresh shoot weight, and dry shoot weight. On the basis of relative salt tolerance, genotypes 243/1 and Tob.66 were found to be more tolerant to salinity and KLR-3-4,SARC-I, NIAB-20, NIAB-30, 5039 and 6529-11 were moderately tolerant and the genotypes 4072 and 6142 were least tolerant to salinity. The estimates of broad-sense heritability for these characters ranged 0.09 to 0.68. The data suggested that improvement in NaCl tolerance in bread wheat is possible by exploiting variability through conventional breeding methods.
  Abdus Salam Khan , Muhammad Ashfaq and Muhammad Azeem Asad
  Correlation between some production traits were computed for 15 wheat varieties/lines. Path coefficient analysis were used to determine the direct and indirect effect of different characters on grain yield. A positive and significant correlation was observed between number of tillers per plant and peduncle length both at genotypic and phenotypic levels. There were highly significant correlation between spike length and grain yield per plant at phenotypic levels and positive significant at genotypic level. Path analysis showed that number of tillers per plant and spike length are the characters which contribute largely to grain yield.
  Imran Habib and Abdus Salam Khan
  A 5 x 5 diallel cross experiment involving five wheat varieties/lines viz., SARC-1, Tobari-66, 4072, 4943 and 4770 revealed that the traits like flag leaf area, spike length and spikelets per spike were controlled by over dominance type gene action, suggesting delayed selection to fairly good improvement in these traits. While number of grains per spike and grain yield per plant were governed by partial dominance type of gene action, determining fruitful selection in the early generation for these traits. Epistasis was absent in all the traits involved.
  Zulfiqar Ali , Abdus Salam Khan and Tariq Manzoor Khan
  Diallel crosses involving genotypes K-65, LU26S, 6500, 5039 and 1671-1 should additive. Genetic variance with partial dominance was observed for all the characters studied except spike length where over dominance was observed. Epistatic effect was absent for all the characters. The genotype 1697-1 seems to be the best source of height reduction as it contained most recessive genes and its grain yield per plant was also high after K-65. These two lines could be used in the breeding programme to develop high yielding wheat varieties.
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