Evaluation of Different Plant Extracts under In vitro Condition against Fusarium oxysporum f. sp. vasinfectum (FOV) Causing Wilt Disease of Cotton under South Gujarat, India

Cotton (Gossypium hirsutum L.) is a major fiber crop that contributes significantly to global economic and social development. Cotton is a major cash crop in our country and belongs to the family Malvaceae. Cotton is a historically important commercial commodity, next to food grains, and serves as the primary raw material for the thriving textile industry. Cotton production, processing, textiles, and allied industries employ approximately 42 million people and sustain their livelihoods.In this present study, six different plant extracts at 10 per cent concentration were evaluated by poisoned food technique under in vitro condition against the Fusarium oxysporum f. sp. vasinfectum causing wilt disease of cotton. When compared to control, all the plant extracts showed a significant suppression of the pathogen's mycelial growth. The minimum colony diameter was observed in the Garlic bulb extract with 35.42mm which, was statistically superior over the rest of phytoextracts and it was at par with Turmeric (Curcuma longa) 38.36mm while, the highest mycelial growth with the minimum per cent growth inhibition was found in onion bulb extract (A. cepa).