ارزیابی عملکرد دانه و عملکرد بیولوژیک 64 رقم تجاری گندم تحت شرایط کنترل و تنش خشکی

In order to investigation and comparison among 64 cultivars of wheat, field experiment was conducted at the
experimental farm of Zanjan University in October 2010. The experiment carried out in lattice design with
two replications in two stress and control environments. In stress environment, the plants subjected to water
stress in May 20th. Irrigation was terminated for them up to -2 Mpa soil potential. In lower potential the
plants were re-irrigated. Analysis of variance displayed differences among cultivars in grain yield and
bioyield trails. The highest grain yield in control and drought stress condition belonged to tabasi and pastor
cultivars, respectively, which can be as a resistant cultivar for drought stress condition. Ohadi, Mahdavi,
Rasad and Azar had highest stability in drought stress condition, suggesting that they are suitable cultivars in
this experiment. The highest and lowest bioyield were belonged to Tabasi and Omid cultivars, respectively,
in control condition. Also, Chamran and Navid cultivars had highest and lowest bioyield, respectively, in
drought stress condition.