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March 17, 2021
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April 18, 2021
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June 20, 2021
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Abstract

The effect of different plant growth regulators on flowering, fruiting, yield, and quality of pomegranate (Punica granatum L.) cv. Bhagwa was studied in a field trial at ICAR - Indian Institute of Horticultural Research (IIHR), Bengaluru, during two seasons, namely ambe bahar (January–February) 2016 and hastha bahar (September–October) 2016-17. Nitrobenzene (NB) 1.0, 1.5, and 2.0 ml plant-1, Cycocel (CCC)  500, 1000, and 1500 ppm plant-1, Uracil  25 and 50 ppm plant-1, CCC  1000 ppm + Uracil  25 ppm plant-1, CCC  1500 ppm + Uracil  50 ppm plant-1, and Control were among the eleven treatments studied. The application of uracil  50 ppm plant-1 resulted in a higher number of hermaphrodite flowers plant-1 (264.7), number of fruits plant-1 (154.0), and fruit yield (27.1 kg/plant). Fruit weight (197.6 g), fruit length (6.64 cm), total aril weight (113.63 g), 100 aril weight (27.18 g), fruit juice weight (101.94 g), TSS content (19.96 OB), fruit anthocyanin content (6.46 mg 100 g) and low titrable acidity (0.41 percent) were recorded when CCC  1000 ppm + Uracil  25 ppm plant-1 was applied. During ambe bahar, the highest fruit width (6.90 cm) and volume (162.7 ml) were observed with CCC  1000 ppm and 1500 ppm plant-1, respectively. During hastha bahar, CCC  1500 ppm plant-1 resulted in a higher number of hermaphrodite flowers (287.8), the highest percentage of fruit set (86.10), the highest number of fruits plant-1 (156.66), the highest fruit yield (54.53 kg plant-1), the highest fruit weight (348.32 g), the longest fruit length (8.53 cm), and the largest fruit volume (8.53 cm) (33.93 ml), total aril weight (224.01 g), 100 aril weight (35.09 g), fruit juice weight (119.40 g) and TSS content (16.00 OB). A foliar spray of nitrobenzene  1.5 ml plant-1 compounded the high fruit anthocyanin content (6.47 mg 100g-1). As a result of the research, it can be concluded that CCC  1000 ppm + Uracil  25 ppm plant-1and CCC  1500 ppm plant-1were the most effective treatments for improving floral characters, fruiting, yield, and quality in pomegranate cv. Bhagwa during both seasons.

Keywords

Bhagwa Plant growth Regulators Pomegranate Flowering Yield

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S., F., Murthy, B. ., Reddy, M., Satisha, J. ., Upreti, K. K. ., Laxman, R. H. ., & Srinivasulu, B. . (2021). Induction of flowering and improvement of fruit yield and quality in pomegranate (Punica granatum) cv. Bhagwa by various plant growth regulators. Environment Conservation Journal, 22(1&2), 49–58. https://doi.org/10.36953/ECJ.2021.221209
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