Resistance of wild Arachis species to late leaf spot and rust in greenhouse trials

Pande, S and Rao, J N (2001) Resistance of wild Arachis species to late leaf spot and rust in greenhouse trials. Plant Disease, 85 (8). pp. 851-858. ISSN 0191-2917

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Seventy-four accessions of wild Arachis species along with a susceptible line TMV 2 belonging to A. hypogaea were evaluated for resistance to late leaf spot and rust (caused by Phaeoisariopsis personata [Mycosphaerella berkeleyi] and Puccinia arachidis, respectively) under greenhouse environment. The experiment was conducted twice to confirm the resistance of the accessions. Percentage of leaf area damaged and disease score on a 1 to 9 scale for late leaf spot and rust were recorded for all accessions in both experiments. Additionally, percentage of defoliation was recorded for late leaf spot. One accession of A. hoehnei, ICG 8190, and one accession of A. duranensis, ICG 13199, were asymptomatic to late leaf spot in both experiments. In addition, 26 accessions were classified as resistant, 10 accessions were moderately resistant, and the remaining 36 accessions exhibited a susceptible reaction to late leaf spot. Only one accession of A. kuhlmannii, ICG 8954, remained asymptomatic to rust in both experiments. All other accessions, except ICG 8206 of A. ipaensis, ICG 8197, ICG 8198, ICG 11549, and ICG 13178 of A. monticola, and ICG 13171 of A. stenosperma were classified as highly resistant to rust. Four accessions of A. monticola were susceptible to late leaf spot and rust.

Item Type: Article
Subjects: Mandate crops > Groundnut
Depositing User: Library ICRISAT
Date Deposited: 26 Sep 2011 10:48
Last Modified: 26 Sep 2011 10:53
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Acknowledgement: UNSPECIFIED
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