IDENTIFICATION OF RESISTANT SOURCES AGAINST YELLOW MOSAIC VIRUS IN VIGNA SPECIES

Thirteen Vigna species comprised of 126 accessions were raised at field condition continuously for three years during Kharif seasons for assessing the field resistant genotypes of various Vigna species and used as resistant sources for Mungbean Yellow Mosaic Virus. Most of the accessions in all species have been shown seasonal variation in MYMV susceptibility except V. umbellata for Yellow Mosaic Virus. None of the entries of each species showed hundred per cent MYMV resistance except Vigna umbellata for all the three consecutive years during Kharif seasons. Based on the infection of MYMV of field resistance, the accession of different species were selected for agro inoculation, the only species Vigna umbellata showed hundred percent resistance so 24 accessions were alone imposed to agro inoculation test. All 24 genotypes of Vigna umbellata showed resistance reaction against MYMV along with Susceptible Vigna radiata.