| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436162 |
| ISSN: | 0001-3765 |
| Autores: | Santos, Jessé V. dos1 Ribeiro, Paula R.A1 Carneiro, Maria Angélica B2 Soares, Isaac C3 Fiorini, Ivan V.A4 Cancellier, Leandro L4 Veiga, Adriano D5 Albuquerque, Carlos Juliano B6 Pinho, Renzo G. von4 Moreira, Fatima M.S3 |
| Instituciones: | 1Universidade Federal de Lavras, Programa de Pos-Graduacao em Microbiologia Agricola, Lavras, Minas Gerais. Brasil 2Universidade Federal de Uberlandia, Instituto de Ciencias Agrarias, Uberlandia, Minas Gerais. Brasil 3Universidade Federal de Lavras, Departamento de Ciencia do Solo, Lavras, Minas Gerais. Brasil 4Universidade Federal de Lavras, Departamento de Agricultura, Lavras, Minas Gerais. Brasil 5Empresa Brasileira de Pesquisa Agropecuaria, Cerrados, Brasilia, Distrito Federal. Brasil 6Empresa de Pesquisa Agropecuaria de Minas Gerais, Unidade Experimental do Triangulo e Alto Paranaíba, Uberlandia, Minas Gerais. Brasil |
| Año: | 2020 |
| Volumen: | 92 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Aplicado, descriptivo |
| Resumen en inglés | The formononetin biostimulant may be an option for reducing P fertilization once it stimulates mycelial growth of arbuscular mycorrhizal fungi and increases plant ability to take up nutrients through the roots, especially phosphorus. The objective of this study was to evaluate the effect of formononetin associated with phosphorus fertilization in maize. Field experiments were conducted in a randomized block design with a 3 × 4 factorial arrangement (0, 50 or 70, and 140 kg ha-1 P2O5; and formononetin application rates: 0, 25, 50, and 100 g ha-1), with four replications. Formononetin (100 g ha-1) increased the mycorrhizal colonization rate up to 30% in maize in the first four weeks after emergence when no P fertilizer was applied, and to 17% when 50 or 70 kg ha-1 of P2O5 were applied. The application of 50 and 100 g ha-1 of formononetin significantly increased plant height, ear height, and grain yield (22% - 76%) when no P fertilizer was applied. The use of formononetin in the field stimulates mycorrhizal colonization, has a positive effect on maize yield, and reduces the need for P fertilizer application in maize. However, this effect was evident only at low P soil contents |
| Disciplinas: | Agrociencias |
| Palabras clave: | Fertilización, Gramíneas, Maíz, Micorrizas arbusculares, Bioestimulantes, Isoflavonoides, Formononetina, Zea mays |
| Keyword: | Fertilization, Gramineae, Corn, Formononetin, Arbuscular mycorrhizae, Biostimulants, Isoflavonoids, Zea mays |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
