Vol. 12, Issue 6 (2023)

Author(s):
Priyanka Singh, Rajaneesh Singh, Hari Baksh, Raj Panday, Aman Srivastav and Avneesh Kumar Panday

Abstract:
The field experiment was conducted at Experimental Unit, Department of Horticulture, Tilak Dhari Post Graduate College, Jaunpur (U. P.) during the Zaid season of 2021-2022 to study of effect of plant growth regulators on growth and yield attributes of sponge gourd (Luffa cylindrical L.). The seed of sponge gourd were sown in the second week of February at the spacing of 3m x 75 cm. The experiment was laid out in Randomized Block Design with 10 treatments and 3 replications. The experiment was intended to study the effect of three plant growth regulator (PGR) viz., gibberellic acid (GA₃), Naphthalene acetic acid (NAA) and Ethrel for growth, flowering and yield attributes of sponge gourd. The application of Ethrel@ 250 ppm was found beneficial for of fruit length (26.61 cm), fruit diameter(3.72 cm), average fruit weight (160.66 g), yield per plant (5.27 Kg), per plot (63.32 Kg) and yield per hectare(200.65 q), number of branches per plant (13.05) and number of node where first female flower appeared (24.37). Whereas application of GA₃ @ 200 ppm influenced the main vine length (558.72 cm) at harvesting, however maximum days taken to first opening of male flower (54.83), days taken to first opening of female flower (58.83), days taken to first fruit set (62.83), days to first harvest (76.18) was obtained in control (application of distilled water).