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Evaluation of Transgenic Cotton Lines for Resistance to Pink Bollworm and Leaf Feeding Lepidoptera

Four Monsanto transgenic lines of Coker -312 containing the gene for endotoxin from Bacillus thuringiensis were compared to Coker-312 and MD51ne for resistance to the pink bollworm (PBW) and leaf-feeding lepidopterans. In 11 samples of 50 bolls per plot, 12 plots per line, collected 7/16 to 8/24, the transgenic lines averaged 0.13 PBW /100 bolls while the controls averaged 5.92 PBW /100 bolls. None of the bolls collected from the transgenic lines on 11/18 contained diapausing PBW larvae, while the control lines averaged 57 diapausing larvae /100 bolls. The transgenic lines generally had less leaf damage caused by beet armyworm, cabbage looper and saltmarsh caterpillar.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/208627
Date02 1900
CreatorsWilson, F. D., Flint, H. M., Parks, N. J., Stapp, B. R.
ContributorsSilvertooth, Jeff
PublisherCollege of Agriculture, University of Arizona (Tucson, AZ)
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Article
Relation370091, Series P-91

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