Evaluation of Wild Relatives of Chickpea (Cicer spp.) for Resistance to Pod Borer, Helicoverpa armigera (Hubner)

Sharma, H C and Pampapathy, G and Lanka, S K and Ridsdill-Smith, T J (2004) Evaluation of Wild Relatives of Chickpea (Cicer spp.) for Resistance to Pod Borer, Helicoverpa armigera (Hubner). Indian Journal of Plant Genetic Resources, 17 (1). pp. 17-26. ISSN 0971-8184

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The legume pod borer, Helicoverpa armigera, is a major constraint to chickpea production worldwide. The levels of resistance in the cultivated chickpea germplasm are moderate, and therefore, we evaluated 93 accessions of annual wild relatives of chickpea in the field, and 141 accessions under greenhouse conditions for resistance to H. armigera. Under field conditions, 24 accessions showed a leaf feeding score of <2.0 compared to 6.0 to 6.5 of the Cicer reticulatum accession IG 69975. These accessions also had less than 2 eggs and/or larvae of H. armigera and <2 larvae of Spodoptera exigua per plant at the flowering/podding stages. Based on leaf feeding, larval survival, and larval weights in the detached leaf assay, 41 accessions showed low leaf feeding, reduced larval weights, and/or low larval survival. Accessions IG 69947, IG 70002, IG 70003, IG 70009, IG 70019, IG 70022, ICC 17125, IG 69979 ICC 17122, ICC 17156, IG 70006, and ICC 17187 (C. bijugum), IG 69995 and IG 70030 (C. judaicum), and IG 69988, IG 69999 IG 70021, IG 70025, and IG 70028 (C. pinnatifidum) showed low leaf feeding, low larval weights, and low host suitability index. These accessions can be exploited for introgressing resistance genes from the wild relatives into the cultivated chickpeas to increase the levels and diversify the basis of resistance to H. armigera.

Item Type: Article
Uncontrolled Keywords: Cicer spp., Helicoverpa armiger, Host plant resistance, pod borer.
Subjects: Mandate crops > Chickpea
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 15 Dec 2012 11:45
Last Modified: 23 Mar 2018 06:30
URI: http://oar.icrisat.org/id/eprint/6325
Official URL: http://www.indianjournals.com/ijor.aspx?target=ijo...
Acknowledgement: UNSPECIFIED
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