Combining Ability for Resistance to White Mold in a Diallel Cross of Soybean
Braz. arch. biol. technol
;
62: e19170610, 2019. tab
Artigo
em Inglês
| LILACS
| ID: biblio-1039135
ABSTRACT
Abstract The white mold, caused by Sclerotinia sclerotiorum (Lib.) de Bary, is one of the most important diseases of soybean. The objective of the present work was to evaluate the soybean reaction to the fungus S. sclerotiorum, which causes white mold, in a partial diallel with 50 crosses. The Group I of parents was composed of ten experimental lines with high grain yield and the group II consisted in five genotypes with possible resistance to white mold. Ten plants of each cross in the F4 generation and the parents were evaluated for reaction to fungus infection using the method of inoculation in detached leaves in order to assess the severity of the disease and to later estimate the combining abilities. Estimates of the specific combining ability (SCA) was a significant reaction to S. sclerotiorum, indicating that there is variability for fungus resistance due to non-additive genes action.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Doenças das Plantas
/
Ascomicetos
/
Glycine max
Tipo de estudo:
Estudos de avaliação
Idioma:
Inglês
Revista:
Braz. arch. biol. technol
Assunto da revista:
Biologia
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
University of São Paulo/BR
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