Premium
Field Evaluation of Glanded and Glandless Cotton ( Gossypium hirsutum L.) Lines for Boll Weevil ( Anthonomus grandis Boh.) Susceptibility 1
Author(s) -
Jenkins Johnie N.,
Maxwell Fowden G.,
Parrott W. L.
Publication year - 1967
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1967.0011183x000700050009x
Subject(s) - anthonomus , boll weevil , biology , malvaceae , gossypium hirsutum , fiber crop , weevil , agronomy , horticulture
The boll weevil is the major cotton insect in the rain grown cotton belt. We investigated glandless cottons to determine if they were more susceptible to the boll weevil than the currently grown glanded varieties. Two years' results from large field plots with two pairs of glanded glandless cottons indicated that the glandless genes gl 2 and gl 3 did not cause greater susceptibility in the Acala 4‐42‐77 and Rex Smoothleaf lines. Thirteen pairs of glanded‐glandless lines were compared in small field plots. In each of the 13 comparisons no significant differences were found. Antibiosis tests showed slightly larger weevils on some glandless lines. These data suggest that the glandless character should not create any increased boll weevil susceptibility, especially with careful selection of genetic background.