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A Boll Weevil Oviposition Suppression Factor in Cotton 1
Author(s) -
Buford William T.,
Jenkins Johnie N.,
Maxwell Fowden G.
Publication year - 1968
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/cropsci1968.0011183x000800060002x
Subject(s) - anthonomus , biology , boll weevil , backcrossing , hybrid , gossypium hirsutum , malvaceae , fiber crop , botany , gossypium barbadense , horticulture , strain (injury) , weevil , genetics , anatomy , gene
The rate of boll weevil, Anthonomus grandis Boheman, oviposition was tested on 252 cotton lines, Gossypium hirsutum L. and G. barbadense L., in a nonreplicated mass screening procedure. Boll weevil oviposition was reduced in 26 lines. Replicated tests were performed on six of these by using the A & M laboratory strain and a Mississippi field strain of weevils. The two strains ranked the six cotton lines in relatively the same order. We obtained F 1 hybrids of each of the 26 lines by crossing them with ‘Deltapine Smooth Leaf’ (DPSL) and tested the hybrids for oviposition with the A & M strain in replicated tests. Significant differences were found. Oviposition values ranged from 49 to 178% of the commercial DPSL parental line. ‘S. I. Seaberry’ produced the lowest oviposition rate. Inheritance studies with S. I. Seaberry ✕ DPSL were conducted in the F 1 , F 2 , and backcross progeny. Difficulty was experienced in testing individual F 2 backcross plants since the test required many squares. We did, however, determine that the ability of S. I. Seaberry to suppress boll weevil oviposition was under genetic control.