Abstract
Ten genotypes of wheat were studied at three water regimes by applying three, two and only one irrigation at different intervals/stages. The experiment was conducted at NIAB Farm, Faisalabad, Pakistan on clay loam soil applying normal doses of N and P fertilizer during 2005-06 in three replications keeping varieties as main plot and treatments as subplots. Date for seven morphological characters viz. Plant height, productive tillers per plant, spike lets per spike, spike length, grain per spike, yield per plant and 1000 grain weight were recorded and subjected to analysis for variances and means were computed following DMR test. Effect of water stress on different morphological attributes in all treatments showed significant differences. All the seven plant attributes reduced at less number of irrigations while sterility percentage was increased at less moisture conditions. Maximum grain yield per plant was recorded in varieties Sarsabz and Sarcc-3. This might be due different genetic makeup of the breeding lines and behaviour and interaction in water stress environment. It may be concluded that for achieving maximum economic yield Sarsabz and Sarcc-3 can be grown in water stress environments.
