Potential of soybean crosses in early inbreeding generations for grain yield
| Autor: | Fernanda Aparecida Castro Pereira, Natal Antonio Vello, Gabriela Antônia de Freitas Rocha |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
partial diallel
0106 biological sciences Glycine max Crop yield diallel analysis 04 agricultural and veterinary sciences Heritability Biology 01 natural sciences Diallel cross Animal science Genetic variation genetics parameters 040103 agronomy & agriculture 0401 agriculture forestry and fisheries General Earth and Planetary Sciences Grain yield Genetic variability MELHORAMENTO GENÉTICO VEGETAL combining ability Agronomy and Crop Science Inbreeding 010606 plant biology & botany Biotechnology General Environmental Science |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Crop Breeding and Applied Biotechnology v.18 n.3 2018 Crop Breeding and Applied Biotechnology Sociedade Brasileira de Melhoramento de Plantas instacron:CBAB |
| Popis: | The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number of days to flowering (NDF), number of days to maturity (NDM), plant height at maturity (PHM), and grain yield (GY). Results indicated genetic variability between the parents and between the crosses. For GY, six (37.5%) parents stood out with high yield. The GCA and SCA estimates were significant for all traits, revealing additive and non-additive effects. The parent USP 04-17.027 (4) was superior for presenting the highest means, heritability, and GCA. The cross (4x13 = USP 04-17.027 x USP 231-2224-12) stood out owing to the highest SCA for GY. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|