Maize hybrids and inbred lines, including six quality protein maize (QPM) inbreds, were evaluated for resistance to ear rot after silk inoculation with three Fusarium graminearum isolates. Conidial suspensions were injected into the upper silk channel to approximate natural infection. Although significant isolate effects and genotype × isolate interactions were observed, the rankings of maize genotypes were similar across isolates. One of the isolates appeared to be less aggressive, and this may account for the observed isolate effects and interactions
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L. M. Reid (1993) studied this question.
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