GENETICS OF RESISTANCE TO PHILIPPINE DOWNY MILDEW IN THREE MAIZE POPULATIONS

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Published: Nov 25, 1993
DOI: https://doi.org/.
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Keywords:
Perenosclerospora philippinensis, gene effects, downy mildew, cyclical improvement procedures, maize.

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C. DE LEON
Agriculture Research Centre, University of Southern Mindanao, Philippines
V. P. AHUJA
Genetics Division, Indian Agricultural Research Institute, New Delhi 110012
ESTER R. CAPIO
Agriculture Research Centre, University of Southern Mindanao, Philippines
B. K. MUKHERJEE
Genetics Division, Indian Agricultural Research Institute, New Delhi 110012

Abstract

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.

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How to Cite
LEON, C. D., AHUJA, V. P., CAPIO, E. R., & MUKHERJEE, B. K. (1993). GENETICS OF RESISTANCE TO PHILIPPINE DOWNY MILDEW IN THREE MAIZE POPULATIONS. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 53(04), 406–410. https://doi.org/.
Issue
Vol. 53 No. 04 (1993): Indian Journal of Genetics and Plant Breeding
Section
Research Article
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