Vol. 7, Issue 3 (2019)
Effect of plant growth regulators and nutrient spray on fruit set, pod yield and quality in tamarind (Tamarindus indica L.)
Author(s): G Nirmala Devi, P Jansi Rani, R Chitra and K Venkatesan
Abstract: A study was conducted on the influence of plant growth regulators and nutrient as foliar spray on fruit set, pod yield and quality of Tamarind (Tamarindus indica. L) at Horticulture College and Research Institute, Periyakulam during 2018-2019. Different concentrations of Plant growth regulators viz… NAA (25 and 50 ppm), GA3 (20 and 40 ppm) and nutrient KNO3 (0. 25 and 0. 5 percent) were sprayed on Tamarind variety PKM-1 during vegetative and flowering period. The performance of trees treated with plant growth regulators and nutrient were better than the untreated trees. The percentage of fruit set (82. 30), number of pods per tree(9180), pulp weight (15. 4), pod yield (163) were found to be maximum on the trees treated with NAA 25 ppm while the length of the pod (13. 0 cm ), seed weight (10g) were found to be the highest on the trees sprayed with KNO3 at 0. 5 percent concentration. The maximum number of seeds (10) was observed on the trees sprayed with KNO3 at 0. 2 percent concentration. Investigations on biochemical attributes revealed that the highest chlorophyll content (3. 71mg/g) was observed in KNO3 at 0. 2 percent concentration. The highest total soluble protein (2. 85gper 100 g) was observed in KNO3 with the concentration of 0. 5percent treated trees of tamarind. The best utilization of C:N ratio in wood was noticed on the tamarind trees applied with NAA at both the concentrations of 25 ppm followed by 50 ppm. The results of the study have shown that the significant role of NAA at 25 ppm concentration to enhance the fruit set percentage and yield parameters in tamarind. The estimation of biochemical parameters revealed that KNO3 was found to be responsible on improving the biochemical traits and C:N ratio which would have influenced the pod yield.
Pages: 1609-1613 | 663 Views 223 Downloads
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How to cite this article:
G Nirmala Devi, P Jansi Rani, R Chitra, K Venkatesan. Effect of plant growth regulators and nutrient spray on fruit set, pod yield and quality in tamarind (Tamarindus indica L.). Int J Chem Stud 2019;7(3):1609-1613.
