بررسی تأثیر شوری آب آبیاری بر برخی از صفات ریشه دو رقم حساس و مقاوم به شوری گندم

In order to assess the effects of salinity on root traits of wheat an experiment was conducted with two cultivars ( Bam and Tajan) and four salt concentrations (6, 8, 10 and 12 dS/ m) in 2010 in Agricultural, Medical & Industrial Research School –Nuclear Science & Technology Research Institute, Karaj, using factorial experiment based on complete randomized design with 3 replications. Root samples for various assays and estimation were taken on the 10 days after anthesis. Results showed significant reduction (P≤0.01) in root dry weight, root area and root volume per plant among 4 salinity treatments by increasing salinity. Root/shoot dry weight ration decrease 1.35 and 2.8 % in Tajan and Bam Cultivars at 8 dS/m compared to 6 dS/m. Therefore review the parameters studied in this experiment can be a large part of the traits associated with sensitivity or tolerance of wheat cultivars to salinity attributed to their roots characteristics