Genetic analysis of partial resistance to Rhizoctonia solani in the soybean cultivar ‘Savoy’

C. A. Bradley, D. S. Mueller, D. D. Hoffman, C. D. Nickell, W. L. Pedersen, G. L. Hartman

Research output: Contribution to journalArticlepeer-review

Abstract

Rhizoctonia root rot, caused by Rhizoctonia solani Kühn, is a soilborne disease that can cause yield loss in soybean (Glycine max). The soybean cultivar 'Savoy' has partial resistance to R. solani. 'Savoy' was crossed to 'Jack', a cultivar that is susceptible to R. solani. Progeny from this cross was evaluated in the greenhouse for reaction to R. solani. Reaction and segregation of the F2 and F3 generations to R. solani indicated that resistance behaves as a quantitative trait. Heritability estimates indicate that selection for resistance to R. solani in soybean based on F2:3 family means would be more efficient than selecting on a single F2 plant basis.

Original languageEnglish (US)
Pages (from-to)137-142
Number of pages6
JournalCanadian Journal of Plant Pathology
Volume27
Issue number1
DOIs
StatePublished - Mar 2005

Keywords

  • Heritability
  • Inheritance
  • Partial resistance
  • Thanatephorus cucumeris

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

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