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Articles by G. Sarwar
Total Records ( 5 ) for G. Sarwar
  Sara Zafar , M. Yasin Ashraf , G. Sarwar , Saqba Mahmood , Abida Kausar and Iftikhar Ali
  Pot cultured experiment consisting of two rice cultivars Basmati-370 (Salt sensitive) and IR6 (salt tolerant) with five replicates each having two different salinity levels was conducted at wire house of Soil Biology Division, NIAB, Faisalabad using randomized complete block design. Growth and chemical analyses of plant samples were carried out at different harvest levels. Results indicated that increasing levels of salinity furnished proportional relationship with increase in Na+ and Cl¯ content with decrease in growth of Basmati-370 whereas K, Ca, N and P content were highly significant in IR-6.
  Saqba Mahmood , Sara Zafar , M. Yasin Ashraf , G. Sarwar , M. Ashraf and M. Naeem
  Biochemical changes in resistant and susceptible cotton cultivars to leaf curl virus (CLCuV) were assessed by a series of laboratory experiments. The experiments were conducted in petri-dishes containing filter papers with sterile distilled water on which seeds of the cotton cultivars i.e. CIM-446, resistant and S-12 susceptible to CLCuV were sown, each cultivar have five replications and petri-dishes were kept in growth cabinet at 28± 2°C. The results showed that the growth attributes proved S-12 superior to CIM-446. But with respect to the biochemical attributes both the cultivars appear to use different biochemical attributes for their germination demands. Soluble sugars translocations and its concentrations were higher in CIM-446 than S-12. In all the three embryonic organs of germinating seeds, starch mobilization had also the same pattern of varietal difference, where CIM-446 had greater ratio of starch, more active enzyme (α-amylase), degrading starch and higher comparative ratio of the resultant product of starch degradation. This may provide better fulfillment of structural requirements to resist virus at vegetative growth stages by contributing readily available energy by active break down of starch and translocation of sugars which may play some role in the composition of antibodies or some other biochemical/physiological responses associated with starch and sugars.
  Muhammad Siddique Sadiq , G. Sarwar and G. S. S. Khattak
  Nuclear Institute for Agriculture and Biology has been actively involved in improvement of mungbean for the past two decades. An introgression of large seed size into an indigenous cytoplasmic adapted background has been accomplished following pedigree selection method. Plant architecture has been changed. Early and synchronous maturity has been induced, in addition to high yield potential along with durable disease resistance. True breeding lines possessing desirable combination of economic traits were evaluated in a series of yield trials at NIAB, Faisalabad. The present study discusses the results of these significant achievements and their implication in enhancing and sustaining mungbean productivity.
  M. S. Sadiq , G. Sarwar , M. Saleem , G. S. S. Khattak , M. Ashraf and G. Abbas
  Disease resistant mungbean variety NIAB MUNG 92 showed tremendous impact for increasing the area and production of the country demonstrating genetic manipulation of economic traits. Large seed size and earliness had been introgressed into otherwise adapted genetic background. A series of high yielding elite lines having improved morpho-physiological characteristics had been developed. Out of these, NM 92 has been approved as NIAB MUNG 92 in November,1996 by the Punjab Seed Council for general cultivation in the province. The present paper reports the developmental history of NM 92 and its adoption by the growers to achieve sustainable mungbean production.
  M.S. Chaudhry , G. Sarwar and A. Majeed
  The present study aimed to investigate the ecology of vegetation and to see if the heterogeneity of soil is the main determining factor for the diversity of natural vegetation. Therophytes were the most prominent proportion of life-form spectrum. On the basis of highest IVI three plant communities, Ochthochloa-Cymbopogon- Community, Launaea-Aerva- Community and Lasiurus scindicus-Community were recognized at the three selected habitats. Measurements for ecological indices showed that Launaea-Aerva- Community was more diverse with regard to species number, richness and evenness as compared to the other two plant communities studied. Present results for the pearson moment correlation showed that soil chemical composition may be the main factor not only for array of vegetation but also determines that what type of plant species can grow there. Soil variables were found highly different at all the study sites. We concluded that soil heterogeneity is the major determinant for development of plant communities while climate do not differ much in the area.
 
 
 
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