Interactions Between Herbicides and Soybean Diseases
Bradley, Carl Alan
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https://hdl.handle.net/2142/84994
Description
Title
Interactions Between Herbicides and Soybean Diseases
Author(s)
Bradley, Carl Alan
Issue Date
2001
Doctoral Committee Chair(s)
Pedersen, Wayne L.
Department of Study
Crop Sciences
Discipline
Crop Sciences
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Agriculture, Agronomy
Language
eng
Abstract
Greenhouse studies were conducted to evaluate several soybean lines and cultivars for resistance to R. solani and to determine the inheritance of resistance. Ninety ancestral lines and 700 current cultivars were evaluated. Most of the lines and cultivars evaluated were susceptible, however, 21 of the ancestral lines and 20 of the current cultivars were determined to be moderately resistant. Of the 21 ancestral lines, CNS, Mandarin (Ottawa), and Jackson are in the pedigree of cultivars previously reported as being moderately resistant to R. solani. The soybean cultivar Savoy was also found to be moderately resistant, and the cultivar Jack was found to be susceptible. Progeny from a cross between Jack and Savoy were evaluated for resistance. Reactions to R. solani in segregating F 2 and F3 generations indicate that resistance is a multigenic trait.
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