Agriculture Research Centre, University of Southern Mindanao,
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The inheritance of resistance to Philippine downy mildew caused by Perenosclerospora philippinensis was studied in maize using resistant and susceptible homozygous derivatives of three maize populations under artificial inoculation in Mindanao, Philippines. The resistance was found to be inherited polygenically and was controlled mainly by additive gene effects. Susceptibility being largely governed by dominance effects together with epistasis, resulted in slow progress in the enhancement of downy mildew resistance using cyclical improvement procedures.
Perenosclerospora philippinensis, gene effects, downy mildew, cyclical improvement procedures, maize
