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VOL. 2, ISSUE 4 (2017)
Screening of some promising pigeonpea (Cajanus cajan (L.) millsp.) genotypes against major insect pests
Authors
M Sreekanth, S Rajamani, MV Ramana
Abstract
A field experiment was conducted during Kharif, 2012 to screen twenty genotypes for their resistance or susceptible to different pod borers in pigeonpea. Among the genotypes screened, CO 6, TRG 38, BRG 2, BRG 10-4 and CRG 2010-01 with 2.8, 3.9, 4.8, 5.0 and 5.0% pod damage due to Helicoverpa armigera were categorized as moderately resistant with pest susceptibility rating (PSR) of 3 and 4; the genotypes PT 04-423, WRG 173, BRG 10-4, BRG 2, TDRG 4, AKTM 10-07, RVKT 268, and LRG 41 respectively with 8.3, 9.6, 10.0, 10.3, 11.3, 12.4, 13.4 and 13.9% pod damage due to M. vitrata were categorized as moderately resistant with PSR of 3 and 4; and the genotypes PT 04-423, GRG 811, RVSA 7-21, WRG 173, BRG 2, GJP 1113 and LRG 41 respectively with 4.1, 11.1, 15.7, 15.9, 16.2, 16.4 and 17.5% pod damage due to Melanagromyza obtusa were categorized as moderately resistant with PSR of 2, 3 and 4. Ultimately, the genotypes, PT 04-423 (16.7%) and BRG-2 (31.3%) showed significantly low pod borer complex damage; BRG 10-4 (15.0%) showed significantly low pod damage due to H. armigera and M. vitrata; and WRG 173 (25.5%) and LRG 41 (31.4%) showed significantly low pod damage by M. vitrata and M. obtusa and were categorized as moderately resistant.
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Pages:94-96
How to cite this article:
M Sreekanth, S Rajamani, MV Ramana "Screening of some promising pigeonpea (<em>Cajanus cajan</em> (L.) millsp.) genotypes against major insect pests". International Journal of Biology Research, Vol 2, Issue 4, 2017, Pages 94-96
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