| Journal: | Scientia Agricola |
| Database: | PERIÓDICA |
| System number: | 000455438 |
| ISSN: | 0103-9016 |
| Authors: | Polloni Barros, Lorraine Cristina1 Hamawaki, Osvaldo Toshiyuki2 Polloni, Lorena1 Barros, Heber Leão Silva3 Morais, Tâmara Prado de4 Hamawaki, Raphael Lemes2 Hamawaki, Cristiane Divina Lemes2 Juliatti, Fernando Cezar2 Nogueira, Ana Paula Oliveira1 |
| Institutions: | 1Universidade Federal de Uberlandia, Instituto de Biotecnologia, Uberlandia, Minas Gerais. Brasil 2Universidade Federal de Uberlandia, Instituto de Ciencias Agrarias, Uberlandia, Minas Gerais. Brasil 3Universidade Federal de Uberlandia, Instituto de Ciencias Biomedicas, Uberlandia, Minas Gerais. Brasil 4Instituto Federal de Educacao, Ciencia e Tecnologia do Sul de Minas Gerais, Machado, Minas Gerais. Brasil |
| Year: | 2022 |
| Volumen: | 79 |
| Number: | 5 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | White Mold (WM) is a yield–limiting disease found in soybean. However, up to now no cultivars have been genetically resistant to this disease. Given this context, the present study aimed to develop superior soybean lines with resistance to WM, while maintaining other desirable agronomic traits. Two early maturing soybean cultivars (i.e., EMGOPA 316 and MG/BR 46–Conquista), moderately resistant to WM were used for biparental crosses from which the analyzed population was derived. Therefore, we assessed the resistance to WM in early generation testing of this population. Additionally, we determined the agronomic traits, genetic parameters and selection gains. From 348 F2 genotypes, 35 transgressive genotypes moderately resistant to WM were identified, amongst which 22 genotypes showed desirable agronomic traits for early cycle and grain yield. Moreover, 69 lines were selected as the most promising genotypes for each agronomic trait (i.e. based on the number of days to flowering and maturity, plant height at flowering and maturity, number of nodes on main stem at flowering and maturity, number of pods, grain yield, etc.). Among these selected lines, ten progenies emerged as the superior genotypes for grain yield and early cycle. All together, these results demonstrated that the cross between EMGOPA 316 × MG/BR 46 (Conquista) revealed promising progenies with moderate resistance to WM and/or desirable agronomic traits. Thus, these lines could be used as future resources for breeding efforts aimed at improving resistance to WM |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Leguminosas, Fitotecnia, Genética, Soya, Glycine max, Parámetros genéticos, Resistencia a enfermedades, Mejoramiento genético |
| Keyword: | Legumes, Crop husbandry, Genetics, Soybean, Glycine max, Genetic parameters, Disease resistance, Plant breeding |
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