Higher-precision experimental statistics for the selection of early and upright common bean lines
Document title: Higher-precision experimental statistics for the selection of early and upright common bean lines
Journal: Acta scientiarum. Agronomy
Database: PERIÓDICA
System number: 000459996
ISSN: 1679-9275
Authors: 1
1
2
1
Institutions: 1Universidade Federal de Santa Maria, Departamento de Fitotecnia, Santa Maria, Rio Grande do Sul. Brasil
2Agropecuaria na Associacao Sulina de Credito e Assistencia Rural, Boa Vista do Cadeado, Rio Grande do Sul. Brasil
Year:
Volumen: 42
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract The development of early and upright common bean cultivars is necessary to meet the demand of producers. The objectives of this work were to evaluate more precise experimental statistics for the selection of early and upright common bean lines and identify the traits that provide better genetic differentiation between lines. For this purpose, 156 common bean lines of different grain colours were evaluated in 23 experiments carried out in the southern region of Brazil between 1998 and 2015. The traits related to earliness (flowering and cycle) and upright plant architecture (lodging, insertion of the first pod and insertion of the last pod) were evaluated with high experimental precision by determining F-test values for genotype (Fc), heritability (h2), and selective accuracy (SA). In the experiments with Fc ≥ 2.00, h2 ≥ 49.00%, and SA ≥ 0.70, the best genetic differentiation of early common bean lines was performed by the cycle; and the best genetic differentiation of common bean lines with upright plant architecture was carried out by the insertion of the first and the last pod
Disciplines: Agrociencias,
Biología
Keyword: Genética,
Leguminosas,
Frijol,
Phaseolus vulgaris,
Variabilidad genética,
Análisis estadístico,
Selección
Keyword: Legumes,
Genetics,
Bean,
Phaseolus vulgaris,
Genetic variability,
Statistical analysis,
Selection
Full text: Texto completo (Ver HTML) Texto completo (Ver PDF)