Formononetin accelerates mycorrhization and increases maize production at low phosphorus application rates



Título del documento: Formononetin accelerates mycorrhization and increases maize production at low phosphorus application rates
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000436162
ISSN: 0001-3765
Autores: 1
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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:
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
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