| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Heterosis and combining ability of seed physiological quality traits of single cross vs. three-way sorghum hybrids
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| Autores: |
Galicia-Juárez, Marisol
Mendoza-Onofre, Leopoldo Ernesto
González-Hernández, Víctor Arturo
Cisneros-López, María Eugenia
Benítez-Riquelme, Ignacio
Córdova-Téllez, Leobigildo
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| Data: |
2017-04-11
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| Ano: |
2017
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| Palavras-chave: |
Sorghum bicolor L. Moench
Maternal effects
Seedling emergence
Sorghum lines
Top-cross tests.
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| 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 > 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/31198
10.4025/actasciagron.v39i2.31198
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/31198/pdf
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| Formato: |
application/pdf
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| 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
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| Direitos: |
Direitos autorais 2017 Acta Scientiarum. Agronomy
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