Efecto del extracto de Limnospira maxima sobre parámetros fisiológicos de Stevia Stevia rebaudiana Bert. y berenjena Solanum melongena L. bajo condiciones controladas

Effect of Limnospira maxima on physiological parameters of stevia Stevia rebaudiana Bert. and eggplant Solanum melongena L. under controlled conditions

Una estrategia que podría disminuir parcial o totalmente el uso de fertilizantes de síntesis química es la aplicación de cianobacterias con potencial agrícola que promueven el crecimiento vegetal, lo que las potencia en la concepción de una agricultura sostenible. En el trabajo se evaluó el efecto de cuatro concentraciones de un extracto de Limnospira maxima (0, 4, 8, y 12 mg mL^-1), sobre algunos aspectos fisiológicos de Stevia rebaudiana y Solanum melongena en casa vegetación. Los tratamientos se arreglaron bajo un diseño completo al azar y se midieron parámetros de intercambio gaseoso, fluorescencia de la clorofila a, caracteres biométricos y distribución de biomasa. Los resultados más importantes indicaron que en Stevia rebaudiana y Solanum melongena las tasas de fotosíntesis neta se incrementaron respectivamente en 40,03% y 22,45% cuando se aplicó la cianobacteria. Por otra parte, las plantas de ambas especies que fueron inoculadas requirieron de una menor cantidad de electrones para maximizar sus tasas de fotosíntesis, aumentaron el área foliar, la altura de planta y la distribución de biomasa en raíces y hojas. El indicador fisiológico más importante fue la fotosíntesis neta y este se correlacionó positivamente con casi todos los parámetros estudiados. Los resultados sugieren que el uso del extracto de  L. maxima puede ser una alternativa biotecnológica de fertilización orgánica útil para el desarrollo de una agricultura sostenible. 

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