HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Jenkins, J. N. Articles by Buford, W. T. Search for Related Content PubMed Articles by Jenkins, J. N. Articles by Buford, W. T. Agricola Articles by Jenkins, J. N. Articles by Buford, W. T.

Resistance to Boll Weevil (Anthonomus grandis Boh.) Oviposition in Cotton¹

Cotton (Gossypium hirsutum L. and G. barbadense L.) lines were tested for 3 years in small field plots for boll weevil (Anthonomus grandis Boh.) resistance. A total of 23, 29, and 100 lines were evaluated at one location in 1965, 1966, and 1967 respectively. Five frego, four red, and several Sea Island cotton lines received less boll weevil oviposition than the commercial check line. Oviposition under these field conditions may have measured a different component of preference than our standard laboratory test for oviposition factors. In general, however, lines selected in our laboratory test for low oviposition also showed reduced oviposition in the field tests. A covariance analysis adjusted the number of oviposition damaged squares for the number available to the weevil for oviposition. Gains in precision ranged from 49 to 105% from the use of covariance.

Key Words: Insect preference • Field evaluation

² Research Geneticist, Crops Research Division; Research Entomologists, Entomology Research Division; and Geneticist (Research Assistant) Crops Research Division, Boll Weevil Research Laboratory, Agricultural Research Service, U. S. Department of Agriculture, State College, Miss. 39762. (F. G. Maxwell now Head, Department of Entomology, Mississippi State University, State College, Miss.)

Received for publication January 6, 1969.