Resistance to tobacco streak virus in groundnut, Arachis hypogaea L.

Kalyani, G and Sonali, S and Reddy, A S and Reddy, A G S and Waliyar, F and Nigam, S N (2005) Resistance to tobacco streak virus in groundnut, Arachis hypogaea L. Journal of Oilseeds Research, 22 (1). pp. 105-107. ISSN 0970-2776

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Abstract

Groundnut stem necrosis disease, caused by tobacco streak virus (TSV), is a new disease in groundnut, which appeared in 2000 in Anantapur district of Andhra Pradesh in India. Eleven groundnut bud necrosis disease (GBND) resistant genotypes of groundnut, Arachis hypogaea, along with JL 24 (susceptible control), were screened in the glasshouse for resistance to TSV. Plants were inoculated mechanically at 14 days after sowing (DAS) with 2 virus concentrations, 1:10 and 1:100. Five genotypes showed tolerance to TSV compared with JL 24. These genotypes along with JL 24 were again screened in the glasshouse with larger plant population with 2 virus concentrations (1:10 and 1:100) and at 2 plant ages (14 and 21 DAS) under split-split plot design. Among the 6 genotypes screened, ICGV 99029 (29.4%), ICGV 01276 (34.2%), ICGV 92267 (35.0%) and ICGV 00068 (37.4%) recorded less TSV infection than JL 24 (68.6%). In addition to their tolerance of TSV, these genotypes also possess tolerance of GBND, rust and late leaf spot. These would make good parents in a multiple disease resistance breeding programme in groundnut.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Peanut stem necrosis disease; Peanut bud necrosis disease; resistance sources; sap inoulation; peanut
Subjects:	Mandate crops > Groundnut
Depositing User:	Library ICRISAT
Date Deposited:	25 Aug 2011 05:44
Last Modified:	31 Oct 2011 05:43
URI:	http://oar.icrisat.org/id/eprint/512
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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