Abstract
The reaction of 15 varieties of maize to the growth and cyclopiazonic acid (CPA) production ofPenicillium griseofulvum was examined as a means of identifying varieties which would be resistant to this infestation. Only one variety, MMEH-25, was resistant to the fungus, seeds containing little CPA 30 days after infestation. This variety and Ganga-5, which was only moderately resistant, are popular commercial cultivars.