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VOL. 10, ISSUE 7 (2025)
Screening of greengram genotypes against pod borer complex
Authors
K Rhoda, R Bala Muralidhar Naik, L Rajesh Chowdary, Ch Varaprasada Rao
Abstract
Field evaluation of 13 genotypes and 2 checks
of greengram Vigna radiata (L.) Wilczek was carried out during rabi
2023-24 for screening against resistance to pod borer complex. The population
of spotted pod borer, Maruca vitrata (Geyer) was recorded from bud
initiation stage and the damage in the pods was estimated from the harvested
pods for gram pod borer, Helicoverpa armigera (Hubner) and podfly, Melanagromyza
obtusa (Malloch). The results revealed that the mean larval population of M.
vitrata was in the range of 0.69 to 2.53 larvae per plant and based on per
cent pod damage genotype LGG 667 was categorized as moderately resistant to M.
vitrata. Based on pest susceptibility %, seven genotypes (LGG 610, LGG 673,
PUSA 9072, LGG 667, LGG 678, VBN 2 and LGG 683) were categorized as resistant
to H. armigera. Based on pest susceptibility %, eight genotypes (LGG
610, LGG 673, PUSA 9072, LGG 667, VBN 4, LGG 678, VBN 2 and LGG 683) were
categorized as resistant to M. obtusa.
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Pages:42-47
How to cite this article:
K Rhoda, R Bala Muralidhar Naik, L Rajesh Chowdary, Ch Varaprasada Rao "Screening of greengram genotypes against pod borer complex". International Journal of Entomology Research, Vol 10, Issue 7, 2025, Pages 42-47
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