Effect of moisture content in cowpea pods on infestation by spotted pod borer, Maruca vitrata (fab.) (Lepidoptera: Crambidae)
Publication Date : 21/03/2016
Fourty eight accessions of cowpea were evaluated for resistance to the spotted pod borer, M. vitrata in the Department of Agricultural Entomology, College of Horticulture, Kerala Agricultural University, Thrissur from September 2014 to June 2015. Significant variation was observed between the genotypes in terms of pod borer damage. The pod damage ranged from zero to 47.95 per cent. Eleven accessions, viz., EC 100092, Palakkadan thandan payar, IC 26048, IC39945, IC 2815, KBC – 2, EC 98668, IC 39947, IC 20645, IC 52110 and IC 52118 recorded zero damage to pods. The highest extent of pod damage (47.95%) was recorded in case of Bhagyalakshmy. The moisture content of the pods were analysed, positive and significant correlation was observed between per cent damage and moisture content (0.427) at 0.01 level.
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