Vol. 14, Issue 4 (2025)

Author(s):
Lakshmi Gupta and Uzma Khatoon

Abstract:
Plant growth regulators (PGRs) plays a vital role in improvement of growth, flowering and yield of cucumber (Cucumis sativus L.). A field experiment was conducted during (February-June) 2024 at Kamla Nehru Institute of Physical & Social Sciences), Sultanpur, Uttar Pradesh to evaluate the impact of Gibberellic Acid (GA3), Naphthalene Acetic Acid (NAA), & Ethrel on cucumber. The experiment was laid out in a Randomized Block Design (RBD) with ten treatments and three replications at different concentration of (GA3 15,30,40 ppm), (NAA 50,100,150 ppm) and (Ethrel 100,200,300 ppm). Observations were carefully taken of cucumber growth, flowering and yield on different parameters. Results revealed that treatment T₃: (GA3 40 ppm) resulted in longest vine length (150.20 cm) and highest number of branches (5.12) improving the growth. Treatment T₉: (Ethrel 300 ppm) reduced flowering time (37.15 days) and increased female flowers (17.24) while decreasing male flowers (118.72). Treatment T₂: (GA3 30 ppm produced best quality fruits with length (16.51 cm), diameter (4.92 cm) and having weight (241.75 gm). Treatment T₃: (GA3 40 ppm) recorded highest yield per vine (2.31 kg). These experiment data demonstrates that how PGRs can improve the quality and yield of cucumber.