General and specific combining ability in sweet sorghum.

In breeding of sweet sorghum hybrids, non-additive genetic effects are important in phenotypic expression of the traits of interest. The aim of this study was to evaluate the general combining ability (GCA) of sweet sorghum lines and the specific combining ability (SCA) of the hybrids for agronomic and technological traits. Five fertility restorer lines, four male-sterile lines, and their hybrids from partial diallel crosses were evaluated in experiments laid out in a 5 x 6 triple rectangular lattice design in the municipalities of Lavras, MG and Sete Lagoas, MG, Brazil. Diallel analysis was performed using the Griffing model adapted to partial diallel crosses. There was a significant effect of GCA and SCA for most of the traits evaluated, indicating the participation of additive or dominant genes in inheritance. The restorer lines CMSX508, BRS 511, CMSXS643, and CMSXS646 show potential for use as parents in sorghum breeding programs.

Bibliographic Details

Main Authors:	ROCHA, M. J. da, NUNES, J. A. R., PARRELLA, R. A. da C., LEITE, P., LOMBARDI, G. M. R., MOURA, M. L. C., SCHAFFERT, R. E., BRUZI, A. T.
Other Authors:	Mara Jane da Rocha, Universidade Federal de Lavras; José Airton Rodrigues Nunes, Universidade Federal de Lavras; RAFAEL AUGUSTO DA COSTA PARRELLA, CNPMS; Pakizza Sherma da Silva Leite, Universidade Federal de Lavras; Gabrielle Maria Romeiro Lombardi, Universidade Federal de Lavras; Mayra Luiza Costa Moura, Universidade Federal de Lavras; ROBERT EUGENE SCHAFFERT, CNPMS; Adriano Teodoro Bruzi, Universidade Federal de Lavras.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2019-01-28
Subjects:	Seleção parental, Dialelo parcial, Reprodução híbrida, Sorghum Bicolor,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104903
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