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

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

PDF - Published Version Restricted to ICRISAT users only Download (1MB) | Request a copy

Abstract

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.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Groundnut, Arachis hypogaea L., resistance, Aspergillus flaws, mycotoxin.
Subjects:	Mandate crops > Groundnut
Depositing User:	Mr Charan Sai Ch
Date Deposited:	03 Nov 2011 03:25
Last Modified:	13 Dec 2012 03:56
URI:	http://oar.icrisat.org/id/eprint/3594
Official URL:	http://dx.doi.org/10.3146/i0095-3679-14-1-5
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	The authors are grateful to the Andhra Pradesh Agricultural University (APAU), Hyderabad, India, for providing facilities and cooperation in conducting the field trials at Tirupati, Anantapur, and Bapatla. We greatly appreciate the cooperation and assistance given by Mr. D. Subrahmanyam, Junior Groundnut Breeder, Agricultural College, Bapatla, and Mr. Somaswara Reddy, Assistant Plant Pathologist, Andhra Pradesh Agricultural University, Regional Agricultural Research Station, Tirupati.
Links:	Author

View Statistics

Actions (login required)

View Item