Vol. 7, Issue 4 (2019)
Effect of plant growth regulators and stage of application on morphological and yield parameters of bitter gourd cv. VK-1 Priya
Author(s): Aishwarya K, Syam Sundar Reddy P, Sadarunnisa Syed, Ramaiah M and Srinivasa Rao G
Abstract: A field experiment was conducted at Vegetables block, College of Horticulture, Anantharajupeta, Dr. Y. S. R. Horticultural University, Andhra Pradesh. during kharif 2018 to study the effect of plant growth regulators and stage of application on morphological, yield and yield components in bitter gourd cv. VK-1 Priya. The experiment consists of 9 PGR treatments with two concentrations each of NAA (50, 100 ppm), GA3 (15, 25 ppm), MH (50, 100 ppm), Ethrel (100, 200 ppm) and control (water spray) and three stages of PGRs application viz., S1 (2-4 leaf stage), S2 (2-4 leaf stage and flower initiation stage) and S3 (2-4 leaf stage, flower initiation and fruit stage).The results indicated significant differences between the growth regulators and stage of application on all growth and yield parameters at all the stages. Among the treatments application of GA3 25 ppm significantly recorded maximum vine length (31.56 cm, 188.33 cm and 335.56 cm at 20, 40 DAS and at final harvest respectively), highest male flower node number (12.91) and maximum number of leaves (26.47, 101.07 and 241.03 at 20, 40 DAS and at final harvest respectively) and maximum leaf area (116.02 cm2). MH 100 ppm significantly recorded maximum number of branches per vine (13.57), while ethrel 200 ppm recorded lowest number of days to 50% flowering (30.30), maximum fruit diameter (8.39 cm), maximum fruit yield per plant (3.30 kg) and maximum fruit yield per hectare (17.511 t). Ethrel 200 ppm took least number of days to first fruit harvest (54.19) and extended the days to last fruit harvest (123.21). NAA 100 ppm significantly recorded maximum fruit set percentage (87.60). Among the stage of application, PGRs spray at 2-4 leaf stage was found to be superior in enhancing both morphological and yield parameters.
Pages: 2688-2692 | 405 Views 198 Downloads
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How to cite this article:
Aishwarya K, Syam Sundar Reddy P, Sadarunnisa Syed, Ramaiah M, Srinivasa Rao G. Effect of plant growth regulators and stage of application on morphological and yield parameters of bitter gourd cv. VK-1 Priya. Int J Chem Stud 2019;7(4):2688-2692.
