EFFECT OF GROWTH REGULATORS ON GROWTH AND YIELD OF TURMERIC (Curcuma longa L.) VARIETIES IN GANGETIC ALLUVIAL PLAINS OF WEST BENGAL
Journal Title: International Journal of Agriculture Sciences - Year 2017, Vol 9, Issue 15
Abstract
An experiment was conducted to find out the effect of growth regulators on growth and yield of turmeric (Curcuma longa L.) varieties in Gangetic alluvial plains of West Bengal at Horticultural research farm, Jaguli, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal conducted during 2014-15 and 2015-16. Two concentrations of two plant growth regulators namely GA3 (50 ppm and 100 ppm), and Ethrel (50 ppm and 100 ppm) and five varieties namely Suguna, Alleppy Supreme, Rashmi, Rajendra Sonia and Duggirala were included in this investigation. The regulators were applied as foliar spray at 90 and 120 days after transplanting. There were altogether 25 treatments replicated thrice in RBD with factorial concept. Among the different doses of plant growth regulators maximum plant height (141.80 cm), number of tillers (2.83), number of leaves (17.15), weight of mother rhizomes (118.63 gm), length of primary rhizome (6.48 cm)), rhizome yield per plot (13.43 kg) and yield per hectare (33.60 t/ha) were observed in plants raised from foliar application of GA3 100 ppm. Among the varieties maximum plant height (136.87 cm), maximum length of mother rhizomes (6.37 cm) and primary rhizomes (6.89 cm), maximum weight of mother rhizomes (119.71 gm) and primary rhizomes (146.43 gm), maximum yield per plot (12.41 kg) and yield per hectare (31.04 t/ha) were observed in Rajendra Sonia variety. Among the interaction studies significant increase of plant height (153.28 cm), number of primary rhizomes (7.85), length of primary rhizome (7.52 cm), yield per plot (13.43 kg) and yield per hectare (33.60 t) was noticed in Rajendra Sonia variety with foliar spraying of GA3 100 ppm. Therefore, the results led to a conclusion that, from rhizome yield maximization point of view, the most effective treatment was Rajendra Sonia variety with foliar spraying of GA3 100 ppm for commercial production of turmeric in Gangetic alluvial plains of West Bengal.
Authors and Affiliations
S. VENUGOPAL, A. PARIARI, C. S. KARTHIK, A. K. RANJITA DEVI, R. K. ADHARSH, C. HAOKIP MARY
Keywords
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