مقایسه عملکرد لاین‌های امیدبخش گندم در شرایط تنش شوری

Salinity stress is a serious threat of plant growth and production all over the world. Considering the high importance of wheat in human nutrition, which its annual global demand is raising, identifies of new salt tolerant lines and cultivars is imperative. In order to study the effect of salinity stress on yield and yield components of 17 elite lines and three salt tolerant cultivars of Arg, Bam and Karchia as checks, an experiment in completely randomized blocks with four replications conducted in the Birjand Field research agriculture of university on 2010-2011. Results showed that there were significant differences between lines and cultivars in 1% probability level in aspect of days to physiological maturity, spike and peduncle length, plant height and number of seed per spike and in 5% probability level in seed yield. Lines MS-91-16 and MS-91-14 with averages of 6.77 and 6.63 ton per ha grain yield were better among the lines and check Karchia and same as checks Arg and bam. The reason of better performance of these lines is having a higher seed weight in the salinity condition.