Studies on effect of foliar application of amino acids and vitamins on total chlorophyll content of turmeric (Curcuma longa L.) leaves

Application of biologically active amino acids and vitamins would be environmentally friendly approach in achieving sustainable agriculture. Considering increasing global demand and environmental challenges, this study explores novel approaches to enhance its sustainable production and improve quality. Amino acids are an organic form of N and play a role in plant protein structure. Vitamins can be used as convenient and affordable organic fertilizer to increase the efficiency of the plant and preserve its nutrients. This research was conducted to evaluate the physiological changes with respect to chlorophyll content of turmeric leaves induced by foliar applied amino acids (glutamine, lysine, glycine, aspartic acid and phenyl alanine at four concentrations of 50, 100, 150 and 200 ppm each) and vitamins (ascorbic acid, thiamine, folate and niacin at four concentrations of 25, 50, 75 and 100 ppm each) including control. The results revealed that chlorophyll content of turmeric leaves was significantly increased content by the application of amino acids and vitamins and it was found high with enhanced concentration of amino acids and vitamins. Among the different amino acids, glutamine 150 ppm (4.49 mg g^-1) recorded the highest total chlorophyll content and for the vitamins, ascorbic acid 100 ppm (4.38 mg g^-1) associated with highest as compared to other treatments and control.