Title:	Combining ability as a strategy for selecting common bean parents and populations resistant to white mold.
Authors:	FERREIRA, L. U. MELO, P. G. S. VIEIRA, R. F. LOBO JUNIOR, M. PEREIRA, H. S. MELO, L. C. SOUZA, T. L. P. O. de
Affiliation:	LENIO URZEDA FERREIRA, UFG; PATRICIA GUIMARÃES SANTOS MELO, UFG; ROGERIO FARIA VIEIRA, EPAMIG; MURILLO LOBO JUNIOR, CNPAF; HELTON SANTOS PEREIRA, CNPAF; LEONARDO CUNHA MELO, CNPAF; THIAGO LIVIO PESSOA OLIV DE SOUZA, CNPAF.
Date Issued:	2018
Citation:	Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 18, n. 3, p. 276-283, jul./set. 2018.
Description:	Common bean parents and populations resistant to white mold (WM, caused by Sclerotinia sclerotiorum) were selected based on estimates of general combining ability (GCA) and specific combining ability (SCA) for WM severity in three field nurseries in Brazil. Twenty-seven populations were obtained by partial diallel crosses between parents from two groups: GI) three sources of partial resistance identified abroad and GII) nine Brazilian cultivars and elite lines. Populations were advanced in bulk up to the F6 generation. The overall mean of WM severity from combined analysis ranged from 2.83 to 5.03 (scale of 1 to 9 scores) in the F6 population. The score of the susceptible control BRS Requinte was 7.21. The GI parents K-59, in Oratórios, MG, and Viçosa, MG, and K-407 and PI204717, in Goianira, GO, contributed to increase resistance to WM. The most promising populations for obtaining elite lines resistant to WM were K-59/BRS Executivo, PI204717/BRS Campeiro, PI204717/Jalo Precoce, K-59/BRS Radiante, and K-407/BRS Cometa.
Thesagro:	Feijão Phaseolus Vulgaris Melhoramento Genético Vegetal Sclerotinia Sclerotiorum Cruzamento Dialélico Resistência Variedade Resistente
NAL Thesaurus:	Beans Sclerotinia Disease resistance Diallel analysis Plant breeding
ISSN:	1518-7853
DOI:	10.1590/1984-70332018v18n3a41
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPAF)