Susceptibility of Maize toGibberella zeaeEar Rot: Relationship to Host Genotype, Pathogen Virulence, and Zearalenone Contamination
- 1 January 1983
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 67 (1) , 89-91
- https://doi.org/10.1094/pd-67-89
Abstract
Susceptibility to G. zeae ear rot differed significantly between certain inoculated corn (Z. mays) inbreds (A619, A632, A634, and Mo17) and single-cross hybrids (A619 .times. A632 and Mo17 .times. A634). Significant differences (P = 0.05) in the pathogenicity of 2 G. zeae isolates were also observed. Zearalenone concentrations in infected ears varied according to corn line and fungus isolate. The less virulent isolate produced relatively more zearalenone in culture and in diseased ears. Estimates of disease severity (percent ear rot) were good predictors of zearalenone contamination and may be useful in selecting desirable corn lines.This publication has 0 references indexed in Scilit: