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Articles by A. R. Awan
Total Records ( 2 ) for A. R. Awan
  Yousaf Ali , A. R. Awan and M. Y. Ashraf
  Rice lines were screened for salinity tolerance at International Rice Research Institute. Out of eighteen lines , eight were found tolerant, five were moderately tolerant and rest were susceptible to high salinity. Two entries showed higher root shoot ratio and were also found tolerant. Screening at seedling stage and higher root shoot ratio provides a clue about salt tolerance potential of a genotype.
  Riaz A. Wahed , P. Moutonnet , M. Y. Ashraf , M. H.Naqvi , C.Kirda , G. R. Tahir , A. R. Awan and M. M.Iqbal
  A wheat genotype V-85205 grown for three years under different cultural practices differing in soil moisture status under slightly different climatic conditions. A pre-fixed moisture deficit irrigation schedule was maintained with application of two fertilizer levels. Multiple regression analysis was done for grain yield and the contribution of each irrigation towards total linear variation in wheat grain yield was worked out through backward elimination method. The average contribution of each irrigation to total variation in grain yield were 50-54, 10, 1-0, 4 -5 % at the two fertilizer levels at tillering, booting, flowering and grain filling stages respectively. At low fertilizer inputs there was more irrigation contribution to grain yield. The contribution of irrigations at earlier stages was 94 and 90% of the total irrigation contribution - saving 50 % irrigation water losing only 6-11% grain yield at the two fertilizer levels respectively. The irrigation productivity factor (YicF) was generally more under low fertilizer inputs and irrigation application at earlier crop stages.
 
 
 
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