Research Notes : United States : Evaluation of soybean germplasm for stress tolerance and biological efficiency : To evaluate soybean germplasm and cultivars for stress tolerance toward - Pest and Diseases

Date
1984-04-01
Authors
Rangappa, M.
Benepal, P.
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Iowa State University Digital Repository
Abstract

A total of 1,273 soybean germplasm lines and 39 commercial varie-ties were screened for natural resistance to Mexican bean beetle (MBB) under field conditions. There were 421, 314, 266, 136, and 136 germplasm and varieties from maturity groups VI, VII, VIII, IX, and X, respectively. An average of 1,000 laboratory-reared adult MBB per day were released uniformly over all the field throughout the growing season from May until September to create an adequate MBB infestation.

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