ارزيابي واكنش ده ژنوتيپ جو به شوري در مرحله جوانه زني و رشد گياهچه HORDEUM VULGAR. L

A evaluation reaction of ten genotype of barley in salinity on germination and seedling growth (Hordeum vulgar. L)

This experiment was conducted to determine the effects of salinity (0,8, and 16dS.m·ʹ), varieties, as well as their interactions on germination characteristics and seedling growth in barley. Bomi, Torkaman, Eize, Siah, Sahra, I-yeknavakht, l4G, IIG, 5G and 15G, were cultivars. The plots were arranged as factorial, using a completely randomized design with three replications. The study was conducted in Gorgan University of Agricultural Sciences and Natural Researches, research laboratory of collage of agriculture, in 2007. All character of this study expects stem dry weight, uniformity affected by salinity. Increase in salinity significantly decreased germination percentages, germination rate, and root length, stem length, seedling dry weight, and increased total conversation efficiency of seed reserves. Salinity affected all the traits adversely and significantly. The interaction of genotype and salinity were significance in the germination rate, Root length, stem length, seedling dry weight and Total conversation efficiency of seed reserves. The results this research shows that the modified cultivars have more resistance against increasing level of salinity and says this fact that seed modifying is successful in this manner. Of course more experiments are necessary.