Data/hora: 14/06/2024 03:46:25

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 17/11/2017
Data da última atualização: | 09/02/2018
Autoria: | SILVA, K. J. da; TEODORO, P. E.; MENEZES, C. B. de; JÚLIO, M. P. M.; SOUZA, V. F. de; SILVA, M. J. da; PIMENTEL, L. D.; BORÉM, A.
Afiliação: | Universidade Federal de Viçosa; Universidade Federal de Viçosa; CICERO BESERRA DE MENEZES, CNPMS; Universidade Federal de São João del-Rei; Universidade Federal de São João del-Rei; Universidade Federal de Viçosa; Universidade Federal de Viçosa; Universidade Federal de Viçosa.
Título: | Contribution of morphoagronomic traits to grain yield and earliness in grain sorghum.
Ano de publicação: | 2017
Fonte/Imprenta: | Genetics and Molecular Research, Ribeirão Preto, v. 16, n. 2, p. 1-10, 2017.
DOI: | 10.4238/gmr16029649
Idioma: | Inglês
Conteúdo: | Given the importance of selecting lines to obtain hybrids, we aimed to verify the relationship between morphological traits that can be used as the criteria for the selection of sorghum lines with high grain yield and earliness. A total of 18 traits were evaluated in 160 sorghum elite lines, in an incomplete block design with two replicates. A correlation network was used to graphically express the estimates of phenotypic and genotypic correlations between the traits. Two path analyses were processed, the first considering grain yield and the second considering flowering as the principle dependent variable. In general, most of the variation in the grain yield and flowering of sorghum lines was explained by the traits evaluated. Selecting sorghum lines with greater width of the third leaf blade from flag leaf, panicle weight, and panicle harvest index might lead to increased grain yield, and selecting sorghum genotypes with higher plant height might lead to reduced earliness and increased grain yield. Thus, the results suggest the establishment of selection indices aiming at simultaneously increasing the grain yield and earliness in sorghum genotypes.
Thesagro: | Grão; Rendimento; Seleção genética; Sorghum bicolor.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/166866/1/Contribution-morphoagronomic.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (27954-1) - UPC - AP - DD -  -  -  - DIS