Vol. 12, Issue 10 (2023)

Author(s):
Puneet Kaur and Dr. Jujhar Singh

Abstract:
The present research ‘‘Effect of growth regulator on growth and flowering of Tuberose (Polianthes tuberosa L.) var. Mexican Single was carried out at Experimental Farm, Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, Punjab during summer season 2022-2023. The experiment was laid out in randomized block design with seven treatments such as no growth regulators, GA₃ @ 50 ppm, GA₃ @ 100 ppm, GA₃ @ 150 ppm, CCC @ 1250 ppm, CCC @ 1500 ppm and CCC @ 1750 ppm and the treatments were replicated thrice. It can be concluded that maximum plant height, number of leaves was observed in GA₃ @ 150 ppm. Growth regulator influenced significantly on flowering characteristic of tuberose. Early spike initiation and early opening to 1^st floret was found in GA₃ @ 150 ppm. Maximum number of spikes/ plot was observed in CCC @ 1750 ppm. The maximum vase life of tuberose spike was noticed in CCC @ 1500 ppm.