W. L. Howe, W. R. Kehr, C. O. Calkins
Abstract
Sources of combined resistance to spotted alfalfa and pea aphids were found in Ranger alfalfa and its parental strains, foreign plant introductions, clones and their progenies. Ranger alfalfa appeared to be a good source for selection of plants with resistance to both aphids.
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Sources of combined resistance to spotted alfalfa and pea aphids were found in Ranger alfalfa and its parental strains, foreign plant introductions, clones and their progenies. Ranger alfalfa appeared to be a good source for selection of plants with resistance to both aphids.
Key concepts: Aphid, Biology, Resistance (ecology), Agronomy, Aphididae, Horticulture, Botany, Homoptera