Combining Ability for Resistance to White Mold in a Diallel Cross of Soybean
Braz. arch. biol. technol
;
62: e19170610, 2019. tab
Article
in English
| 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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Plant Diseases
/
Ascomycota
/
Soybeans
Type of study:
Evaluation studies
Language:
English
Journal:
Braz. arch. biol. technol
Journal subject:
Biology
Year:
2019
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
University of São Paulo/BR
Similar
MEDLINE
...
LILACS
LIS