عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Pure early soybean mutants evolved through mutagenesis (Co-60) from cultivar Clark irradiated with doses 100Gy, 150Gy, 200Gy and 250Gy (absorbed dose) were evaluated for agronomical traits and compared with two commercial cultivars ; Clark and Williams in two regions, Karaj and Alishtar. Experimental design was conducted in a simple lattice (7m x 7m) with two replications. A significant statistical difference in yield existed at 1 and 5 percent level among mutant lines and between mutants – Williams and mutants – Clark, respectively in Karaj. The mutant line number 47 placed itself at the top of the list with the yield of 4782 Kg /hect. , followed by mutant line number 38 with 4722 Kg/hect. .A number of mutant lines matured between 10 to 12 days earlier than the commercial soybean cultivars used as checks in the experiment. In Alishtar seed yield of mutant lines compared to the cultivar Williams showed a significant difference at 5% level. The highest seed yield of 3147 Kg/hect. belonged to the mutant line 47 which also matured two weeks earlier compared to the cultivar Clark. The compound analysis of seed yield in Karaj and Alishtar showed superiority of 15 mutant lines over the cultivar Clark and 36 mutant lines over the cultivar Williams. The mutant line number 18 producing seed yield of 3643 Kg/hect. ranks first in the list while, it matured earlier than both check cultivars, Clark and Williams.
(Weiss.E.A)، ترجمه فرشته ناصری، مشهد، آستان قدس رضوی، معاونت فرهنگی )1370(.
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