Agronomic performance and path analysis of roundup ready and conventional soybean from two-way crosses in the northwestern of So Paulo, Brazil
| Autor: | o Di Mauro, Eduardo Henrique Bizari, Bruno Henrique Pedroso Val, ra Helena Uneda-Trevisoli, Cleber Vinicius Giaretta Azevedo, Fabiana Mota da Silva, Eder Licieri Groli, Antonio Orl, Wallace de Sousa Leite |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Crop yield fungi Randomized block design food and beverages 04 agricultural and veterinary sciences Field tests Biology 01 natural sciences Genetic correlation Animal science Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Grain yield General Agricultural and Biological Sciences Path analysis (statistics) 010606 plant biology & botany |
| Zdroj: | African Journal of Agricultural Research. 11:4584-4593 |
| ISSN: | 1991-637X |
| DOI: | 10.5897/ajar2016.11700 |
| Popis: | The aim of this study was to compare the agronomic performance of RR soybean genotypes with conventional soybean genotypes derived from two-way crosses and evaluate through path analysis the influence of important traits for culture on the grain yield (GY) in the Northwestern of Sao Paulo, Brazil. It was used the randomized block design with three replications. Among the analyzed RR genotypes, three genotypes has high GY, with average values over 4575.5 kg ha-1, while among the conventional, ten genotypes, and the check Conquista showed superiority for GY, with average values over 3511.4 Kg ha-1. In general, the most productive RR soybean genotypes showed higher values when compared with conventional genotypes with higher yield. However, conventional soybean showed a higher number of superior genotypes with similar behavior when compared to the RR soybean. For the group of RR soybean genotypes, all agronomic traits, except one hundred seed weight (HSW), correlated positively with GY. For the group of conventional soybean genotypes, there was no significant correlation between GY and all agronomic traits analyzed. The genotypic correlation and path analysis indicate the plant height at flowering (PHF) and plant height at maturity (PHM) as the most favorable and direct effect on GY. Key words: Glycine max, breeding, genetic correlations, productive performance, direct effect, RR soybeans. |
| Databáze: | OpenAIRE |
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