Multiple insect resistance in several soybean genotypes.

Reference Report for GUA84130465

Title:	Multiple insect resistance in several soybean genotypes.
Authors:	Lambert, L., Kilen, T.C.
Source:	Crop Sci. 1984, 24 (5) : 887-890.
Abstract:	Centennial, Forrest and Tracy-M and the advanced breeding lines D75-10169 and D75-12035 (which have PI229358 in their parentage) were compared to the insect resistant plant introduction PI229358 for levels of resistance to Anticarsia gemmatalis, Pseudoplusia includens, Heliothis virescens and H. zea. Three tests were conducted in 2 environments. Average weights of lepidopteran larvae reared on leaves from the 5 test genotypes were greater than those reared on leaves from PI229358 by 6.3, 24.4, 43.3, 73.6 and 92.7% for D75-10169, D75-12035, Tracy-M, Forrest and Centennial, respectively. Each plant genotype showing resistance to one of the insect species also showed resistance to the other 3 species evaluated, indicating that the development of cultivars from PI229358 with resistance to several insect species may be possible without screening each insect species at each selection stage in a breeding programme. It is also thought that the use of cultivars with intermediate levels of resistance, such as Tracy M, as adapted parents in crosses with resistant germplasm may facilitate the development of highly resistant and agronomically desirable genotypes.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

U.S. Public Domain