ARCHIVES
VOL. 7, ISSUE 9 (2022)
Evaluation of greengram genotypes for resistance against thrips, Megalurothrips distalis (Karny) and spotted pod borer, Maruca vitrata (Fabricius)
Authors
Revathi M, V Selvanarayanan
Abstract
Greengram has long been used as a source of protein in human and animal diets. Despite its importance, greengram is affected by broad range of insect pests. Among these, thrips and spotted pod borer are most predominant and also cause significant yield losses. Therefore, a safe and effective pest management strategy is to explore and exploit the host plant resistance through the deployment of resistant cultivars. Considering the above, ten promising genotypes of greengram were chosen from preliminary trial that was conducted to identify the sources of resistance to the thrips Megalurothrips distalis (Karny) and the spotted pod borer Maruca vitrata (Fabricius). These ten genotypes were then screened at the research yard of the Department of Entomology, Faculty of Agriculture, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, India. The observations revealed that, the total mean population of thrips per terminal or flower was lowest in genotype IC-329039-1 and highest in genotype IC-103862. Concurrently, for pod borer, IC-39301-1 had the lowest per cent pod damage but the highest in IC-39317. The genotypes IC-329039-1 and IC-39301-1 were chosen for further testing in order to develop elite varieties.
Download
Pages:138-140
How to cite this article:
Revathi M, V Selvanarayanan "Evaluation of greengram genotypes for resistance against thrips, <em>Megalurothrips distalis</em> (Karny) and spotted pod borer, <em>Maruca vitrata</em> (Fabricius)". International Journal of Entomology Research, Vol 7, Issue 9, 2022, Pages 138-140
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.

