Genetics of Resistance in Maize to the Com Leaf Aphid (Homoptera: Aphididae)

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Abstract:

Ten inbred maize, Zea mays L., lines-A619, A632, B37, B68, B73, B96 (41:2504B), C103, Mo17, Oh45, and Wl53R-and diallel crosses (45 single crosses) were analyzed to determine the type of gene action involved in resistance to the com leaf aphid, Rhopalosiphum maidis (Fitch). General combining-ability effects were more important than specific combining-ability effects. Additive-gene effects seemed more important than nonadditive-gene effects in conditioning resistance to the com leaf aphid in the diallel crosses. This indicated that multiple genes probably are involved in com leaf aphid resistance. Inbreds A619 and Oh45 had the best general combining ability for resistance to the com leaf aphid. The most susceptible inbreds were B37, B73, and W153R.

Document Type: Research Article

Publication date: August 1, 1992

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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