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Effect of amino acids and vitamins on antagonistic activity of trichoderma viride Kamble Pratima P., Kamble Shivaji S. Mycology and Plant Pathology Research Laboratory, Department of Botany, Shivaji University, Kolhapur-416004(M.S.) Online published on 6 October, 2021. Abstract The antagonistic activity of Trichoderma viride was evaluated against Pythium aphanidermatum (Edson) Fitzp. causing turmeric rhizome rot by using Dual culture technique. To enhance antagonistic potential of this bio-agent physical and chemical mutagenesis of T viride was carried out by using UV light and Sodium azide (SA) respectively. From these, 2 mutants namely TVUV-48 and Tvsa-56 were selected for present study. In the present investigation, effect of physiological factors such as amino acids and vitamins on antagonistic activity of three isolates of Trichoderma viride (TVW TVUV-48 and TVSA-56) were determined Highest percent inhibition was recorded when lsoleucine(70.0%) was used in case of TVS and Proline (72.2%) and Histidine (66.3%) for TVUV-48 and TVSA-56 respectively. Remarkable results for vitamins (Nicotinic acid, Riboflavin and Ascorbic acid) were recorded in case of TVUV-48 among which Nicotinic acid was most effective for all Trichoderma viride isolates. Top Key Words Vitamins, Amino acids, Trichoderma viride, Antagonistic activity. Top | | |
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