EFECTO DE DIFERENTES CONCENTRACIONES NPK Y SIMBIOSIS CON GLOMUS INTRARADICES, SOBRE EL CONTENIDO DE PROTEÍNAS SOLUBLES TOTALES DE PLUKENETIAVOLUBILIS L.
DOI:
https://doi.org/10.22497/165Abstract
Resumen
Plukenetia volubilis L. “sacha inchi” es una Euphorbiaceae de importancia socioeconómica debido al alto valor nutricional de sus semillas. El uso de hongos micorrícicos arbusculares (HMA) como Glomus intraradices, junto con la fertilización NPK, permite lograr incrementos en el contenido de nutrientes como proteínas. En el presente trabajo se midió el contenido foliar de proteínas solubles totales (PST) en plantas de P. volubilis inoculadas con G. intraradices, y tratadas con 4 concentraciones NPK (190-35-210, 60-90-120, 150-90-150 y 150-150-150). Las plantas de P. volubilistratadas con NPK 60-90-120, y en simbiosis con G. intraradices, mostraron mayor contenido de PST y (65.42 ug/g muestra), encontrándose diferencias significativas (p<0.05) con respecto al control. Los tratamientos “NPK 150-150-150 + G. intraradices”; “La Molina + G. intraradices”; “NPK 150-90-150 + G. intraradices”; y “NPK 60-90-120” causaron valores intermedios. Mientras que, las plantas tratadas con “NPK 150-90-150”; “NPK 150-150-150”; y “La Molina”, mostraron los menores valores promedio de proteínas solubles totales. Se concluye, que las diferentes concentraciones de N, P y K, y la interacción simbiótica con G. intraradices ocasionan variación en el contenido de proteínas solubles totales de P. volubilis, siendo las plantas tratadas con el hongo y “NPK 60-90-120”, las que presentaron mayor contenido proteíco.
Palabras clave: simbiosis, Glomus intraradices, proteínas solubles totales, Plukenetia volubilis.
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Abstract
Plukenetia volubilis L. “sacha inchi” is an Euphorbiaceae of great economic importance due to the high nutritional value of its seeds. It is known that the use of Arbuscular Mycorrhizal Fungi (AMF) along with NPK fertilization, increase the levels of nutrients such as proteins in “sacha inchi” tissues. This work was aimed to determine the content of Total Soluble Proteins (TSP) in leaf tissue of P. volubilis inoculated with Glomus intraradices, and treated with 4 NPK levels (190-35-210, 60-90-120, 150-90-150 y 150-150-150). The treatment with 60-90-120 NPK levels and G. intraradices, significantly increased the TSP levels, inducing the higher value (65.42 ug/g tissue). Meanwhile, treatments that combined G. intraradices, and 150-150-150, 150-90-150, 60-90-120 NPK values, presented intermediate values of TSP. The lowest protein contents were induced by treatments that only used NPK fertilizors (150-90-150, 150-150-150, and “La Molina”). It was found that different NPK concentrations, along with the symbiotic interaction between G. intraradices and P. volubilisinduce a variation on TSP levels, being the plants treated with minor levels of fertilizors (60-90-120 NPK) and the AMF, the ones in which higher protein levels were observed.
Keywords: symbiosis, Glomus intraradices, total soluble proteins, Plukenetia volubilis.
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