Data/hora: 01/06/2024 16:44:30

Provedor de dados: | Acta Scientiarum: Agronomy
País: | Brazil
Título: | Heterosis and combining ability of seed physiological quality traits of single cross vs. three-way sorghum hybrids
Autores: | Galicia-Juárez, Marisol; Mendoza-Onofre, Leopoldo Ernesto; González-Hernández, Víctor Arturo; Cisneros-López, María Eugenia; Benítez-Riquelme, Ignacio; Córdova-Téllez, Leobigildo.
Data: | 2017-04-11
Ano: | 2017
Palavras-chave: | Sorghum bicolor L. Moench; Maternal effects; Seedling emergence; Sorghum lines; Top-cross tests.
Resumo: | The aim of this research was to compare genetic parameters for traits related with seed germination and seedling vigour of single cross (SCH) vs. three-way (TWH) sorghum hybrids. The study was conducted in a sand bed under a greenhouse; 67 genotypes (four pairs of A- and B- lines, four R- lines, 13 SCH and 42 TWH) were allocated in a randomized complete blocks experimental design with three replications. Statistical analysis included ANOVA’s and Student “t” tests, while Tukey test (p £ 0.05) was applied for mean comparisons. The R-lines showed better physiological seed quality attributes than the A- and B- lines. The seed quality and heterosis values of SCH vs. that of TWH did not show significant differences (p &gt; 0.05) for any variable; however, heterobeltiosis of SCH was higher than that of TWY for normal seedlings, dry weight of plumule and seedling emergence rate. The A2- line and R14 restorer line showed the highest GCA values in both types of hybrids. No differences (p ≤ 0.05) were found between maternal and paternal effects of the A- and B- lines involved in the male sterile cross (female parent) of the TWH, except for plumule length in Line 5.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/31198

10.4025/actasciagron.v39i2.31198

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/31198/pdf
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; v. 39, n. 2 (2017); 175-181

Acta Scientiarum. Agronomy; v. 39, n. 2 (2017); 175-181

1807-8621

1679-9275

Fonte: | Direitos autorais 2017 Acta Scientiarum. Agronomy