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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

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2017, Vol. 5, Issue 4
Field screening of some green gram [Vigna radiata (L.) Wilczek] Genotypes against spotted pod borer, Maruca vitrata (Fabricius)

Satyapriya Singh and CP Srivastava

Twenty-four green gram genotypes were screened under field conditions to identify sources of resistance against spotted pod borer during Kharif season of 2015-16 at the Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi. The first incidence of spotted pod borer, Maruca vitrata (Fabricius) was observed in 38th standard week in nineteen genotypes out of the total twenty-four genotypes. The population of spotted pod borer was found to be highest in genotype KM 2348 in 41st standard week with population of 1.63 larvae/plant. The pooled mean of the larval population of pod borer was recorded highest in genotype KM 2348 i.e. (0.88 larvae/plant) and lowest in genotype VGG 10-008 (0.07 larvae/plant). The highest per cent pod damage caused by M. vitrata was found in KM 2348 (19.26 %), followed by BM 2012-9 (16.51 %), AKM 12-17 (16.40 %), PM 4 (15.06 %) and IPM 312-20 (14.22 %). On the basis of per cent pod damage and Pest Susceptibility Rating (PSR) index, VGG 10-008 was ascertained a least susceptible genotype against spotted pod borer i.e. PSR-4. The grain yield of different genotypes differed significantly and ranged from 819 kg/ha in the genotype VGG 10-008 to 416 kg/ha in KM 2348.
Pages : 1161-1165 | 1077 Views | 18 Downloads
How to cite this article:
Satyapriya Singh, CP Srivastava. Field screening of some green gram [Vigna radiata (L.) Wilczek] Genotypes against spotted pod borer, Maruca vitrata (Fabricius). J Entomol Zool Stud 2017;5(4):1161-1165.
Journal of Entomology and Zoology Studies
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