INHERITANCE OF RESISTANCE OF CORN TO DOWNY MILDEW CAUSED BY Peronosclerospora philippinensis (Weston) SHAW

Othello B. Capuno; Azucena L. Carpena

INHERITANCE OF RESISTANCE OF CORN TO DOWNY MILDEW CAUSED BY Peronosclerospora philippinensis (Weston) SHAW

Authors

Othello B. Capuno Instructor, Department of Plant Breeding and Agricultural Botany, Visayas State College of Agriculture, VISCA, Leyte
Azucena L. Carpena Associate Pro-fessor, Department of Agronomy, U.P. at Los Baños, College, Laguna, Philippines

Keywords:

Corn, Zea mays, Downy mildew, Perenosclerospora philippinensis, Inheritance, Variance/Covariance analysis, Incomplete dominance, Genetic parameters, Broad sense heritability, Narrow sense heritability, General combining ability, Specific combining ability

Abstract

Evaluation of 36 entries for downy mildew reaction revealed significant differences due to location and genotype components; genotype-environment interaction was also detected. The interactions of general and specific combining ability components with locations were highly significant. The presence of partial or incomplete dominance governing the resistance of corn to downy mildew was detected using the variance/covariance graphic analysis. Estimation of genetic parameter detected major contribution of additive gene action in downy mildew resistance. The average degree of dominance as measured by (H1/D) was partial. Broad and narrow sense heritability estimates were 45.67 and 39.23%, respectively.

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ATR 4(1):18-27(1982)

Submitted

2025-05-20

Published

1982-03-08

How to Cite

Capuno, O. B., & Carpena, A. L. (1982). INHERITANCE OF RESISTANCE OF CORN TO DOWNY MILDEW CAUSED BY Peronosclerospora philippinensis (Weston) SHAW. Annals of Tropical Research, 4(1), 18–27. Retrieved from https://atr.vsu.edu.ph/article/view/771

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Vol. 4 No. 1 (1982)

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Original Research Article

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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INHERITANCE OF RESISTANCE OF CORN TO DOWNY MILDEW CAUSED BY Peronosclerospora philippinensis (Weston) SHAW

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INHERITANCE OF RESISTANCE OF CORN TO DOWNY MILDEW CAUSED BY Peronosclerospora philippinensis (Weston) SHAW

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Abstract

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Submitted

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