Vol. 12, Issue 7 (2023)

Author(s):
Swati Shukla, Rajaneesh Singh, Haribaksh, Raj Pandey and Aman Srivastav

Abstract:
A field study was carried out on ridge gourd during 2021 February to May on Experimental Unit, Pilikothi, Department of Horticulture, Tilak Dhari Post Graduate College, Jaunpur, Uttar Pradesh. The experimental field was laid out in randomized block design (R.B.D.) with ten treatments of different concentrations of three kinds of Plant growth regulators, namely NAA, GA₃ and Ethrel with just one variety replicated thrice. The variety used in this study was Kashi Shivani (IIVR). The experiment comprised of nine foliar applications consisting of T₁: NAA 50 ppm, T₂: NAA 75 ppm, T₃: NAA 100 ppm, T₄: GA₃ 100 ppm, T₅: GA₃ 150 ppm, T₆: GA₃ 200 ppm, T₇: Ethrel 100 ppm, T₈: Ethrel 150 ppm, T_9: Ethrel 200 ppm with T₀: Control. Results revealed that the maximum vine length at harvesting stage (523.57), maximum number of male flowers (150.35) and minimum days taken to opening of first male flower (33.4 days) was observed with GA₃ 200 ppm and maximum number of branches (14.31), earliest opening of female flower (37.83 days), maximum number of female flowers (28.04), minimum days taken to first harvesting (50.3 days), maximum number of fruits per vine (26.19), maximum fruit length (29.45 cm), maximum girth of fruit (14.41 cm), maximum average fruit weight (146.43 g), maximum yield of fruit per vine (3.93 kg/vine), maximum yield of fruit per plot (47.27 kg) and maximum fruit yield per hectare (184.31 q/ha) was observed in treatment T_9: Ethrel 200 ppm.