Evaluation of Pigeonpea Germplasms for Antibiosis Mechanism of Resistance to the Pod Borer, Helicoverpa armigera

Ughade, J.D. and Gosalwad, S.S. and Sarkate, M.B. (2018) Evaluation of Pigeonpea Germplasms for Antibiosis Mechanism of Resistance to the Pod Borer, Helicoverpa armigera. International Journal of Current Microbiology and Applied Sciences (Sppl.6). pp. 705-713.

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Abstract

Antibiosis mechanism of resistance was studied against pigeonpea pod borer H. armigera during two consecutive years by screening twenty six germplasms of pigeonpea under laboratory condition. For studying the antibiosis mechanism of resistance the first instar larva fed on the developing pods of each germplasms in replicated manner. Observations of larval weight on 7th and 12th days from release, larval period, larval mortality, pupal weight and pupal period were recorded. The germplasms BDN-2003-1, BDN-2001-9 and BDN- 708 were found resistant among all the germplasms. These germplasms recorded lowest larval weight of H. armigera on 7th and 12th day, longer larval period, highest larval mortality upto pupation, minimum pupal weight and maximum pupal duration followed by the germplasms ICPL-84060, ICPL-87119 and PT, 0012. Among all the germplasms WRG- 55, VRG-1 and BSMR-846 were significantly susceptible germplasms which recorded highest larval weight on 7th and 12th day from release of larva. Germplasm JKM-207 was the highly susceptible germplasm which recorded longer larval period, lowest per cent mortality, highest pupal weight and shortest pupal duration.

Item Type: Article
Uncontrolled Keywords: Helicoverpa armigera, Host plant resistance, Antibiosis, Pigeonpea, Resistance mechanisms
Author Affiliation: Vasantrao Naik College of Agricultural Biotechnology (Dr.PDKV), Yavatmal 445 001, Maharashtra, India
Subjects: Plant Protection
Divisions: Pigeonpea
Depositing User: Mr T L Gautham
Date Deposited: 04 Mar 2019 04:04
Last Modified: 04 Mar 2019 04:04
URI: http://eprints.icrisat.ac.in/id/eprint/15893

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