Detection Of Some Viral Disease Of Faba Bean From Dezful In Iran

Faba bean is a major grain legume widely cultivated in many countries.There are a large number of viruses damaging faba bean crop. In this survey, during 2011-2012 growing seasons, to determine the distribution of Bean yellow mosaic virus (BYMV), Bean common mosaic virus (BCMV), Cucumber mosaic virus (CMV), Tomato spotted wilt virus (TSWV) and Alfalfa mosaic virus (AMV), 630 samples were collected from field in Dezful, Khozestan province. Distribution of viruses was detected by DAS-ELISA. Percentage of single infection to BYMV, TSWV, BCMV and CMV was 14.6%, 12.9%, 7.5% and 0.8% respectively. Percentage of double and triple infection of BYMV+TSWV, BYMV+BCMV, BYMV+CMV, TSWV+BCMV, TSWV+CMV, BCMV+CMV, BYMV+TSWV+BCMV, BYMV+TSWV+CMV, BYMV+BCMV+TSWV and TSWV+BCMV+CMV were 17%, 11.9%, 4.9%, 5.4%, 2.1%, 2.4%, 2.1%, 0.8%, 0% and 1.1% respectively. 0.3% of samples were infected BYMV+ CMV+ BCMV+TSWV.No infection to Alfalfa mosaic virus (AMV) was detected in any of the samples. In greenhouse inoculation assays, the virus induced local lesion and then systemic symptoms on a number of plant species of Chenopodiaceae,Leguminosae and Solanaceae.