Antibiosis mechanism of resistance to pod borer, Helicoverpa armigera in wild relatives of chickpea.

Sharma, H C and Pampapathy, G and Lanka, S K and Ridsdill-Smith, T J (2005) Antibiosis mechanism of resistance to pod borer, Helicoverpa armigera in wild relatives of chickpea. Euphytica, 142 (1-2). pp. 107-117. ISSN 0014-2336

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Abstract

The pod borer, Helicoverpa armigera, is one of the major constraints to chickpea production worldwide. The levels of resistance to pod borer in the cultivated chickpea germplasm are moderate, and therefore, we studied the reaction of 32 accessions of wild relatives of chickpea for resistance to H. armigera under greenhouse conditions. Accessions ICC 17257, IG 70002, IG 70003, IG 70012, (Cicer bijugum), IG 69948 (C. pinnatifidum), IG 69979 (C. cuneatum), IG 70032, IG 70033, IG 70038, and IG 72931 (C. judaicum) showed lower leaf feeding, a drastic reduction in larval weight, and poor host suitability index at the vegetative and/or flowering stages of crop growth as compared to the cultivated chickpeas. Based on percentage pods damaged by 5th day (<52% pods damaged compared to 90% pods damaged in Annigeri), and percentage weight gain by the larvae (<35% weight gain compared to 366% weight gain on ICCV 2); accessions IG 69979 (C. cuneatum), IG 70003, IG 70022, IG 70016, IG 70013, IG 70012, IG 70010, IG 70001, IG 70018, and IG 70002 (C. bijugum), and IG 72953 (C. reticulatum) showed high levels of resistance to H. armigera. Larvae of H. armigera weighed <50 mg when reared on C. pinnatifidum (IG6 9948 and IG 70039), and C. judaicum (IG 72931) compared to 301.95 mg on C. arietinum (ICCC 37 - the cultivated chickpea). Larval weights on many accessions of the wild relatives of chickpea were much lower than those on the cultivated chickpeas, indicating the existence of different mechanisms of resistance to H. armigera. There was no pupation and adult emergence when the larvae were reared on accessions of C. pinnatifidum (IG 69948 and IG 70039), and C. judaicum (IG 69980, IG 70032, IG 70033 and IG 72931). The wild relatives of chickpea showing high levels of antibiosis to H. armigera can be used to introgress diverse resistance genes into cultivated chickpea to increase the levels and diversify the basis of resistance to this insect

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Cicer spp. wild relatives of chickpea - host plant resistance - pod borer - Helicoverpa armigera
Subjects:	Mandate crops > Chickpea
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	07 Oct 2011 10:08
Last Modified:	07 Oct 2011 10:08
URI:	http://oar.icrisat.org/id/eprint/2065
Official URL:	http://dx.doi.org/10.1007/s10681-005-1041-5
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We thank Dr S.L. Clement, USDA-ARS, Pullman, U.S.A., for his critical comments on the manuscript. We also thank V. V. Rao, J. Raja Rao, N. Chandra and Hareendernath for their help in these experiments, and ICRISAT genebank for providing the seeds of different accessions. The funding support provided by the Grains Research and Development Corporation (GRDC), Australia is gratefully acknowledged.
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