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Evaluation of Annual Species of Medicago as Sources of Alfalfa Weevil Resistance1

D. K. Barnes, R. H. Ratchliffe

Open publisher page 22 citations

Abstract

Seventy‐nine entries representing 16 annual Medicago species were evaluated for resistance to the alfalfa weevil, using resistance to adult feeding, larval development, and ovipositicin tests. M. rugosa had resistance by all three selection criteria. M. minima, M. polymorpha, M. scutellata, and M. truncatula contained entries that were classified as resistant to two of the selection criteria. The ovipositioii resistance of some entries was apparently due either to lack of a stimulant to trigger oviposition or to a deterrent that limited oviposition.

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What this paper is about

Seventy‐nine entries representing 16 annual Medicago species were evaluated for resistance to the alfalfa weevil, using resistance to adult feeding, larval development, and ovipositicin tests. M. rugosa had resistance by all three selection criteria. M. minima, M. polymorpha, M. scutellata, and M. truncatula contained entries that were classified as resistant to two of the selection criteria. The ovipositioii resistance of some entries was apparently due either to lack of a stimulant to trigger oviposition or to a deterrent that limited oviposition.

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OpenAlex reports 22 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Seventy‐nine entries representing 16 annual Medicago species were evaluated for resistance to the alfalfa weevil, using resistance to adult feeding, larval development, and ovipositicin tests. M. rugosa had resistance by all three selection criteria. M. minima, M. polymorpha, M. scutellata, and M. truncatula contained entries that were classified as resistant to two of the selection criteria. The ovipositioii resistance of some entries was apparently due either to lack of a stimulant to trigger oviposition or to a deterrent that limited oviposition.

Key concepts: Biology, Weevil, Medicago, Medicago sativa, Resistance (ecology), Selection (genetic algorithm), Botany, Medicago truncatula

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