Selection and Evaluation of Pea Aphid-Resistant Alfalfa Plants1

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.


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: October 1, 1960

More about this publication?
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more