Indian Journal of Genetics and Plant Breeding (The)
Year : 1981, Volume : 41, Issue : 1
First page : ( 137) Last page : ( 143)
Print ISSN : 0019-5200. Online ISSN : 0975-6906.

Downy mildew in pearl millet

Basavaraju R., Safeeulla K. M., Murty B. R.*

Downy Mildew Research Laboratory, University of Mysore, Mysore, 6, India

*Nuclear Research Laboratory, lARI, New Delhi-110 012, India

Summary

Sixteen parents, 60 F₁, 60 F₂, 60 BC₁ and 60 BC₂ were used to study the components of genetic variances and heritability for resistance iri pearl millet to downy mildew under artificial epiphytotic conditions. The results revealed that non-additive i.e., dominance effects are more important than additive effects in most of the crosses. The degree of dominance is overdominance. Some crosses showed the importance of additive effects and partial dominance nature. Heritabihty values also suggested predominance of non-additive effects for resistance.

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