RESUMENEn el presente estudio se investigó el efecto de complementar turba a diferentes salinidades con vermicompost de excretas de borrego sobre la sobrevivencia, el crecimiento y la fotosíntesis de plántulas de tamarindo (Tamarindus indica), en un experimento en invernadero. Las plantas se cultivaron en sustrato de turba (peat moss) adicionado con 0, 20, 40, 60 y 80 mM de NaCl y complementado con o sin 10% (v/v) de vermicompost. Sin vermicompost, la sobrevivencia de las plantas fue de 20% en el tratamiento con 80 mM de NaCl, pero con vermicompost la sobrevivencia fue de 85%. Sin vermicompost el crecimiento de las plantas se redujo en dos veces a 20 mM de NaCl, pero con vermicompost no se encontró efecto inhibitorio. La fotosíntesis se redujo en las plantas en el tratamiento con 20 mM de NaCl, sin vermicompost, pero no se encontró inhibición cuando la turba fue adicionada con vermicompost. Se encontró que la vermicompost tiene un enorme potencial para limitar el efecto negativo de la salinidad sobre el crecimiento de las plantas de tamarindo.PALABRAS CLAVES: Vermicompost, salinidad, tamarindo, fotosíntesis.
ABSTRACTIn the present study the effect of supplementing peat moss at different salinities with sheep manure vermicompost on survival, growth and photosynthesis of Tamarind plantlets (Tamarindus indica) was investigated in a greenhouse experiment. Plantlets were grown in peat substrate (peat moss) added with 0, 20, 40, 60 and 80 mM NaCl and supplemented with or without 10% (v/v) vermicompost. Without vermicompost, the survival of the plantlets was 20% after 80 mM NaCl addition, but with vermicompost it was 85%. Without vermicompost, plant growth was reduced two fold at 20 mM NaCl, but with vermicompost no inhibitory effect was found. Photosynthesis was reduced in the plantlets in the 20 mM NaCl treatment without vermicompost, but no inhibition was found when peat moss was added with vermicompost. It was found that vermicompost has a huge potential to limit negative effect of salinity on growth of tamarind plants.
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