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Resistance of Peanut Genotypes to Seed Infection by Aspergillus Flavus in Field Trials in India

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Relation http://oar.icrisat.org/3594/
http://dx.doi.org/10.3146/i0095-3679-14-1-5
 
Title Resistance of Peanut Genotypes to Seed Infection by Aspergillus Flavus in Field Trials in India
 
Creator Mehan, V K
McDonald, D
Rajagopal, D
 
Subject Groundnut
 
Description Eleven peanut genotypes, six resistant and five susceptible to in vitro seed colonization by Aspergillus flavus Link (IVSCAF), were evaluated for field resistance to seed infection by A. flavus and other soil fungi, and for aflatoxin contamination, in seven environments in southern India. Five of the IVSCAF-resistant genotypes had significantly greater resistance to infection of seed by A. flavus in the field and had lower aflatoxin contamination than the IVSCAF-susceptible genotypes. Resistance to field infection of seed by A. flavus was stable across the seven environments. Significant interactions were found between environments and IVSCAF-susceptible genotypes for infection by A. flavus, Aspergillus niger van Tiegh, and Macrophomina phaseolina (Tassi.) Goid. Genotypes with field resistance to A. flavus also had significantly less seed infection by A. niger, M. phaseolina, and Fusarium spp. than had the A. flavus-susceptible genotypes. Significant positive correlations were found between IVSCAF-resistance and field resistance to A. flavus seed infection, and between the seed infection and aflatoxin B1 contamination. The field resistant genotypes J 11, Ah 7223, UF 71513, U 4–7–47 have yield levels and pod and seed characters acceptable in India.
 
Publisher American Peanut Research and Education Society
 
Date 1987
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/3594/1/JA_602.pdf
Mehan, V K and McDonald, D and Rajagopal, D (1987) Resistance of Peanut Genotypes to Seed Infection by Aspergillus Flavus in Field Trials in India. Peanut Science, 14 (1). pp. 17-21. ISSN 0095-3679