Preharvest kernel invasion in groundnut genotypes by Aspergillus flavus and its relation to the pod surface area

Frank, Z.R. and Smulevitch, Y. and Lisker, N. (1994) Preharvest kernel invasion in groundnut genotypes by Aspergillus flavus and its relation to the pod surface area. Euphytica, 75 (3). pp. 207-213.

[img] PDF
Restricted to ICRISAT researchers only

Abstract

Field and microplot trials were conducted. In microplot experiments the soil was artificially infested by Aspergillus flavus Link ex Fries. In field tests the percentage of A. flavus-affected kernels and in microplot experiments the number of A. flavus colonies emerging from 100 seeds was determined. As the geocarpoplane is the main frontier of pod invasion, pod surfaces were measured and the number of seedborne colonies per 100 cm2 of pod surface were calculated for each groundnut genotype. Some genotypes, which were similar in colony incidence (counts per 100 seeds), differed markedly from each other in colonization density (number of seedborne colonies as calculated per unit area of pod surface). Cultivar EC-21115 had a low incidence of seed borne colonies of A. flavus; however, the number of colonies per 100 cm2 of pod surface was high. Cv. Lavkan was low, both, in colony incidence and colonization density. Genotypes low in both these parameters should be tested as potential sources of resistance

Item Type: Article
Uncontrolled Keywords: Aflatoxin - Arachis hypogaea - Aspergillus flavus - colony-incidence - colonization density - genotype resistance - groundnut - peanut - Israel
Author Affiliation: Department of Plant Pathology, ARO, The Volcani Center, Bet Dagan 50250, Israel
Subjects: Postharvest Management
Divisions: Groundnut
Depositing User: Ms K Syamalamba
Date Deposited: 09 Apr 2012 05:40
Last Modified: 09 Apr 2012 05:42
Official URL: http://dx.doi.org/10.1007/BF00025605
URI: http://eprints.icrisat.ac.in/id/eprint/4556

Actions (login required)

View Item View Item