نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
To study the effect of Bean common mosaic virus (BCMV) on seed yield, yield components and some morphological and phenological traits of bean genotypes, an experiment was conducted in research farm of the Islamic Azad University, Shiraz Branch in 2007. Twenty five common bean genotypes were sown in two separate randomized complete block design with three replications under BCMV infection and non-infection conditions. The virus was provided from a research farm in Yasuj. The characterization of the virus was confirmed by PTA-ELISA method. After proliferation of virus on susceptible cultivar, seedlings were inoculated by the leaf rub method. The leaves were dusted with carborundum powder before inoculation. Founded stress by this virus did not affect the reproduction period, but vegetative period decreased a little. The results indicated that virus stress has severely increased the empty pods(88.4%) and decreased seed yield by 46.76 percent, but no significant differences were observed for phenological phases. Pod length, number of seed per plant, number of seed per pod, number of empty pods, seed yield and harvest index were mostly affected by virus. On the basis of the results obtained, for breeding of resistant cultivar to BCMV, in addition to yield, special attention should be paid to these traits.
کلیدواژهها [English]
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