بررسی شاخصهای جوانهزنی دو ژنوتیپ لوبیا قرمز حاصل از پایههای مادری تیمار شده با سطوح مختلف تنش خشکی و نیتروژن

To study the germination parameters and early growth in seeds produced by mother plants treated by different levels of drought stress and nitrogen fertilizer, an experiment as split plot factorial with three replications in field condition was carried out. The main factor was three irrigation levels (irrigation after 60, 90 and 120 mm evaporation from open pan class A) and factorial combinations of N fertilizer at four levels (0, 50, 100, and 150 kg N ha-1) and two red bean genotypes (Akhtar and D81083) were assigned in sub-plots. Produced seeds by mother plants were evaluated by standard germination test and electrical conductivity (EC) test. These experiments were carried out as factorial based on completely randomized design. Results showed that drought stress reduced normal seedlings, length and weight of root and shoot, and seedling vigour. Also, effects of nitrogen application on these traits was significant and generally improved seeds germination and seedling growth parameters. D81083 in normal condition was better in germination than Akhtar genotype but, in drought stress condition they didn’t have any significant difference.