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EFFICIENT APPROACHES FOR THE MANAGEMENT OF KARNAL BUNT OF WHEAT CAUSED BY NEVOSSIA INDICA
Abstract
Evaluation of various wheat varieties against Karnal bunt disease showed that seven cultivars were susceptible, and the same number were moderately susceptible. Fourteen varieties among all were highly resistant whereas nineteen depicted resistant response against the Nevossia indica. Sowing time showed a varying response on disease incidence while the fungicidal chemistries showed that shelter and dolomite were the best at the dose of 45 ug/ml and 100 ug/ml and while 100 µg/ml of Antracol and Alert+ also demonstrate similar results. Protection application of dolomite and shelter showed 62 and 64% decrease in the incidence of Karnal Bunt disease. As eradicative spray dolomite and shelter were used and their application lead to 39 and 41% reduction of disease respectively. Antracol was found least effective as curative spray with 24.07% against the Karnal Bunt disease comparatively. Hence, breeding resistant varieties is the need of the hour for the management of the wheat crop as it is cheaper, safe, and environment friendly approach not only for the farmer, climate and the country. Current research open avenues to exploit more ways for the Karnal bunt management by adopting biological control strategies.
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