Screening of Different Wheat Varieties Against Rust Red Flour Beetle, Tribolium castaneum (Herbst) Thakur Chitrangad Kumar, Harinkhare Rahul Department of Agricultural Entomology, CoA, IGKV, Raipur, 492012, CG email: spallewar@gmail.com
Online published on 13 January, 2016. Abstract The study aims to assess the screening of different wheat varites against rust red flour beetle Tribolium castaneum (Herbst). The present investigation was conducted in the Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during, 2011–2012. 21 wheat varieties were collected and evaluated to know their reaction to the rust red flour beetle, Tribolium castaneum (Herbst) under laboratory condition. For every 15days, each bottle was examined periodically to note the grain weight loss, and population build up. Per cent weight loss was recorded by weighing of grains after sieving of frass and population build up was recorded by counting the number of adult emerged. The data obtained on various characters/parameters were subjected to analysis of complete randomized design. The data on per cent adult mortality, per cent weight loss, population build up was transformed to square root and arc-sine transformation and subjected to statistical analysis and interpretation. None of the varieties was completely resistant to the Tribolium castaneum. Among different wheat varieties MP-4010 had shown the highest degree of tolerance. The maximum weight loss was recorded in Sonalika which shown the highest degree of susceptibility. After 30 days of storage of wheat grains the variety MP-4010 shown maximum tolerance by recording significantly minimum weight loss. The varieties Sonalika shown highest susceptibility in comparison to other varieties by recording maximum weight loss. After 30 days of storage the population build up of T. castaneum was significantly minimum in MP-4010 while maximum was recorded in Sonalika. After a storage period of 45 days per cent weight loss due to infestation of T. castaneum ranged from 0.58o 1.14 per cent. In Sonalika per cent weight loss was maximum while it was minimum in MP-4010. After 45 days of storage population build up of Tribolium castaneum was minimum in MP-4010 and maximum in Sonalika. Top Keywords Screening, Wheat Tribolium. Top |