Selection and Evaluation of Pea Aphid-Resistant Alfalfa Plants¹

Authors: ORTMAN, ELDON E.; SORENSEN, E. L.; PAINTER, R. H.; HARVEY, T. L.; HACKEROTT, H. L.

Source: Journal of Economic Entomology, Volume 53, Number 5, October 1960 , pp. 881-887(7)

Publisher: Entomological Society of America

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Abstract:

Various selection criteria were effective in isolating pea aphid, Macrosiphum pisi (Harr.), resistant plants from susceptible alfalfa, Medicago satire L., populations and these selection criteria also appeared suitable for the evaluation of progeny from resistant plant selections. Selection of vigorous surviving seedlings after infestation with large aphid populations in early seedling stage was a practical and rapid method for use in the selection of resistant plants. Selection and evaluation for resistance were also accomplished on the basis of differential plant stunting at various growth stages and on basis of aphid colonization on individual plants. Although some of the techniques presented were applicable to field conditions under natural aphid infestation, the advantage of greenhouse screening and evaluation in the seedling stage is evident. The general agreement of the results obtained with the various techniques employed indicates their validity and usefulness as a basis for selecting and evaluating resistant plants.

Document Type: Research article

Publication date: 1960-10-01

More about this publication?

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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