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Articles by Afsari S. Qureshi
Total Records ( 4 ) for Afsari S. Qureshi
  Muhammad R. Khan , Afsari S. Qureshi and Syed A. Hussain
  Dry seeds of three chickpea genotypes having different seed coat colours viz; Noor 91 (white), Punjab 91 (brown) and C 141 (black) were treated at 40, 50 and 60 Kr separately and with gibberellic acid (GA3) for studying the effects on 100-seed weight, grain yield, biological yield, harvest index, days to flowering and maturity in M1 generation. Highly significant (p<0.01) variation within genotypes, treatments and also for their interaction was observed for all the characters. Statistically higher 100-seed weight was observed with the combine treatment in the three genotypes as compared with gamma irradiation. Combine treatment normalized the grain yield in Noor 91, while decreased in Punjab 91 however, stimulation was recorded at 40 and 50 Kr in C 141. Stimulation in biological yield was recorded at 40 Kr with the combine treatment in Noor 91 and C141. Harvest index decreased with gamma irradiation in the three genotypes while, stimulation was recorded in C 141. Days to flowering and maturity increased with gamma irradiation however, with combine treatment these values were reduced.
  Muhammad R. Khan , Afsari S. Qureshi , Syed A. Hussain and Muhammad Ibrahim
  Seeds of 250 plants from M1 generation of three chickpea genotypes viz, Noor 91 (white), Punjab 91 (brown) and C 141 (black) at 40, 50 and 60 Kr separately and with gibberellic acid (GA3) along with control were grown to raise the M2 generation. The effects on 100-seed weight, grain yield, biological yield, harvest index, days to flowering and maturity in M2 generation were highly significant (p<0.01) within genotypes, treatments and also for their interaction. Statistically significant increase in 100-seed weight was observed with the combine treatment at 40 Kr while it was decreased at 60 Kr as compared with gamma irradiation. Grain yield was significantly increased with gamma irradiation however, stimulation was recorded with the application of GA3. Biological yield was decreased while, harvest index was increased with both types of treatments. However, more harvest index was recorded with combine treatment. Days to flowering were increased at 40 and 60 Kr with gamma irradiation while, decreased at 40 and 50 Kr with the combine treatment. Days to maturity were decreased with both the treatments.
  Muhammad Ashraf , Afsari S. Qureshi and Abdul Ghafoor
  Ten genotypes of wheat used characterised with their total DNA variation with special reference to known primers of the genes induced in dehydration and salinity stress. Amplification profiles of DRE primers in identification of polymorphic bands that can be used for finger printing the varieties. Four main groups were observed based on 138 polymorphic bands and variance was related to drought, pedigree or geographic origin. Similar pattern of genetic diversity was also observed when 200 markers were recorded from DRE combinations. Pakistani varieties showed higher degree of 70% dissimilarities, While exotic showed low genetic distance.
  Muhammad R. Khan , Afsari S. Qureshi , Syed A. Hussain and Muhammad Ibrahim
  Three chickpea genotypes viz., Noor 91 (white), Punjab 91 (brown) and C 141 (black) were treated with 40, 50 and 60 Kr doses of gamma irradiation separately and post mutagenically with gibberellic acid (GA3) to create genetic variability. M2 progenies of these treatments were raised from M1 seeds in plant to family manner. The results indicated that induced mutability is governed by the genetic architecture of the material used. Various morphological mutations induced affecting plant height, growth habit, branching and stem structure, stem and foliage colour, leaf type, flowering and maturity, pod and seed type. There were differences between the genotypes and between the two types of treatments. Frequency of these mutants increased with gamma irradiation in Noor 91 and C 141 while, with GA3 it tended to increase in the three genotypes.
 
 
 
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