Condensed tannin levels and resistance of groundnuts (Arachis hypogaea) against Aphis craccivora

Grayer, R J and Kimmins, F M and Padgham, D E and Harborne, J B and Ranga Rao, D V (1992) Condensed tannin levels and resistance of groundnuts (Arachis hypogaea) against Aphis craccivora. Phytochemistry, 31 (11). pp. 3795-3800. ISSN 0031-9422

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Abstract

A strong negative relationship was found between the concentrations of procyanidin, a condensed tannin, in the leaf bud petioles of seven genotypes of groundnut (Arachis hypogaea) and fecundity of the aphid Aphis craccivora on the same genotypes. Genotype EC 36892 contained the highest amount of procyanidin per weight of fresh petiole (ca 0.7%) and aphids feeding on this genotype produced significantly fewer offspring than aphids reared on genotypes with low procyanidin levels. It is proposed that testing for high procyanidin concentrations may provide plant breeders with a quick and relatively simple method to screen new groundnut genotypes for resistance against Aphis craccivora

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Arachis hypogaea; Leguminosae; petiole sap; condensed cracciuora; aphid fecundity; insect resistance
Subjects:	Mandate crops > Groundnut
Depositing User:	Ms K Syamalamba
Date Deposited:	03 Jun 2014 09:32
Last Modified:	03 Jun 2014 09:32
URI:	http://oar.icrisat.org/id/eprint/8081
Official URL:	http://dx.doi.org/10.1016/S0031-9422(00)97530-7
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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