Additional sources of resistance to groundnut rosette disease in groundnut germplasm and breeding lines

Olorunju, P.E. and Ntare, B.R. and Pande, S. and Reddy, S.V. (2001) Additional sources of resistance to groundnut rosette disease in groundnut germplasm and breeding lines. Annals of Applied Biology, 139 (2). pp. 259-268.

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Abstract

Groundnut rosette, a virus disease of groundnut (Arachis hypogaea) transmitted by the aphid, Aphis craccivora, reduces yield in susceptible cultivars by 30-100%. Additional sources were sought in germplasm accessions involving 2301 lines from different sources and from 252 advanced breeding lines derived from crosses involving earlier identified sources of resistance to rosette. The lines were evaluated in field screening trials in Andhra Pradesh, India using an infector row technique during 1996 and 1997 growing seasons. Among the germplasm lines, 65 accessions showed high levels of resistance while 134 breeding lines were resistant. All rosette disease resistant lines were susceptible to groundnut rosette assistor virus. This work identified germplasm and breeding lines that will contribute to an integrated management of groundnut rosette disease. These new sources also provide an opportunity to eliminate yield losses due to the rosette disease

Item Type: Article
Author Affiliation: Institute for Agricultural Research, Ahmadu Bello University, PMB 1044, Zaria, Nigeria
Subjects: Plant Protection > Pests
Crop Improvement > Genetics/Genomics
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 11 Jan 2011 22:18
Last Modified: 11 Jan 2011 22:18
Official URL: http://dx.doi.org/10.1111/j.1744-7348.2001.tb00402...
URI: http://eprints.icrisat.ac.in/id/eprint/1343

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