MICROBIAL STRAINS WITH POTENTIAL TO REPLACE THE INORGANIC FERTILIZATION OF SWEET SORGHUM (Sorghum bicolor)
Sweet sorghum (Sorghum bicolor) is a crop destined for the production of refined sugar, alcohol, and biofuels, among others. Inorganic fertilization, although necessary, represents a practice of high economic and environmental cost. Arbuscular mycorrhizal fungi and plant growth promoting bacteria us...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/52769 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2018.34.03.04 |
| Access Level: | acceso abierto |
| Palabra clave: | biofertilización características de planta productividad hongos micorrízico-arbusculares bacterias promotoras del crecimiento vegetal sorgo dulce sostenibilidad biofertilization plant characteristics productivity arbuscular mycorrhizal fungi plant growth promoting bacteria sweet sorghum sustainability |
| Sumario: | Sweet sorghum (Sorghum bicolor) is a crop destined for the production of refined sugar, alcohol, and biofuels, among others. Inorganic fertilization, although necessary, represents a practice of high economic and environmental cost. Arbuscular mycorrhizal fungi and plant growth promoting bacteria used as biofertilizers have the capacity to reduce or even replace inorganic fertilization. The objective of the present work was to evaluate the biofertilizer potential of microbial strains by greenhouse tests with variety Dale, and productivity in the field with varieties. Dale and Cañero, compared to conventional fertilization. A favorable symbiotic response of microbial strains was observed in greenhouse, field and in both varieties of sweet sorghum. In greenhouse, in general, the microbial strains promoted better plant characteristics (chlorophyll index, height, stem diameter and sugars content) and biomass (stem, leaves, inflorescence, aerial and radicle), compared to uninoculated plants. At field scale the response of varieties to the effect of microbial strains was competitive in relation to conventional fertilization. Stem biomass and sugar content, main productivity variables of sweet sorghum, were similar between microbial strains and conventional inorganic fertilization. The results obtained showed that the strains evaluated have the potential to substitute inorganic fertilization. |
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