Response of Various Wheat Genotypes to Salinity Stress Sown Under Different Locations

The present study was conducted under field conditions to investigate the response of different wheat genotypes to salinity stress when sown under different locations. These experiments were conducted during 2004-05 at three different locations in North West Frontier Province (Yar Hussain, Baboo Dehari (District Mardan), Khitab Koroona (District Charsada) Pakistan, to study the performance of 11 wheat genotypes (Local, SR-24, SR-25, SR-7, SR-22, SR-4, SR-20, SR-19, SR-2, SR-2, SR-23 and SR-40) for their salinity tolerance. These locations had different salinity profile (i.e. Yar Hussain, EC. 3-3.5 dSm-1; Baboo Dehari, EC. 4-4.5 dSm-1 and Khitab Koroona, EC. 5.5.30 dSm-1). Statistical analysis of the data obtained from the field revealed that different locations and wheat genotypes had a significant (p 0.05) effect on plant height, productive tillers m-2, number of grains spike-1, 1000 grain weight, grain and straw yield. The maximum plant height (84.52 cm), number of productive tillers m-2 (31.30), number of grains spike-1 (55.33), 1000 grain weight (37.67 g), grain yield (2402 kg ha-1) and straw yield (3495.89 kg ha-1), was recorded in genotype SR-40 followed by genotype SR-23 when compared with other genotypes. The mean data further indicated that maximum plants height (78.50 cm), number of productive tillers m-2 (32.02), number of grains spike-1 (54.33), 1000 grain weight (37.54 g), grain yield (2324.24 kg ha-1) and straw yield (3428.42 kg ha-1) were recorded at Yar Hussain which has a low salinity profile and when compared with other locations