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VOL. 6, ISSUE 6 (2021)
Evaluation of selected blackgram accessions for resistance to pulse beetle Callosobruchus chinensis l.
Authors
Pavithradevi P, Muthukumaran N
Abstract
Seven Blackgram accessions were screened for their resistance against C. chinensis during 2020-21 in the Department of Entomology, Annamalai University. The selected accessions Kuthirai Saanthal, Kuthalam Local, Sivapuri Local, Thiruvarur Local, Dindigul Local, Sonai Ulunthu and Sivanmalai Local were evaluated for resistance to pulse beetle through choice tests. In multi choice condition, the number of eggs deposition on seeds was lowest in Sivapuri Local (2.0) and highest in Sivanmalai Local (9.67) per 30 seeds. The lowest adult emergence (1.0) was recorded on Sivapuri Local both in 40 and 80 days after release. In no choice condition, number of eggs laid on seeds ranged from 4.33 to 27.33 per 100 grains. Lowest adult emergence was recorded in Sivapuri Local (1.99) and highest in Sivanmalai Local (152.67). Maximum grain damage and weight loss were recorded in Sivanmalai Local, 81.67 per cent and 50 per cent respectively. Lowest grain damage and weight loss were recorded in Sivapuri Local 4 per cent and 5.25 per cent respectively.
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Pages:5-7
How to cite this article:
Pavithradevi P, Muthukumaran N "Evaluation of selected blackgram accessions for resistance to pulse beetle <em>Callosobruchus chinensis</em> l. ". International Journal of Entomology Research, Vol 6, Issue 6, 2021, Pages 5-7
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