بررسی کارآیی برخی از ژرم‌پلاسم‌های دابل هاپلوئید گندم‌های بومی ایران در شرایط کمبود فسفات

In order to evaluate Iranian wheat wild germplasms in adaptation to phosphate deficiency, 8 Iranian wild wheat doubled haploid germplasms were selected and implemented in two phosphate levels (25 and 250 mM) in green house of National Institute of Genetic engineering and Biotechnology as hydroponic cultivation based on the factorial completely randomized design in 2013. Our results showed that the genotypes had significant differences (0/01 & 0/05) in dry weight, free phosphate, total phosphate, phosphatase activity in root and shoot, dry weight and Root:Shoot ratio at phosphate stress with increasing of phosphate level from 25 to 250 mM. To determine the P-efficient line and P-utilization line the following items have been studied: Shoot and root dry matter production, total phosphorus, phosphate stress factor. Finally, genotype 5 (DH-1557-33) and genotype 3 (DH-1557-7) was selected as P-efficient and P-utilization respectively while genotype 2 (DH-1557-3) was selected as P-inefficient.