Impact of seed borne mycoflora on germination and seedling vigour of black gram [Vigna mungo (L.) Hepper]

The present study aimed to investigate the impact of seed borne mycoflora on black gram [Vigna mungo (L.) Hepper]. Seed germination and subsequent seedling vigour are important factor for the influencing crop establishment and yield potential. Six varieties of black gram seed sample viz-Indira urd-1, Pratap, KU-96, TPU-4, TIU-22, Local varieties and seven seed borne mycoflora viz-Fusarium spp., Alternaria spp., Trichoderma spp., Chaetomimum spp., Curvularia spp., Penicillium spp. and Cladosporium spp. were selected for the experiment. A pot experiment was conducted to study the effect of seed borne mycoflora on seed germination and seedling vigour of black gram. The results revealed that, among seed inoculation techniques maximum reduction in seedling index over control was observed in Chaetomium spp. (58.93%) Overall, increased seedling vigour of black gram varieties by Trichoderma spp. inoculated seed lots was recorded (16.91%). Among soil inoculation techniques maximum reduction in seedling index overcontrol was observed in Curvularia spp. (75.23%) inoculated seedlings and over all increased seedling vigour of black gram varieties was observed in Trichoderma spp. (21.14%) inoculated seedlings.