Vol. 12, Issue 9 (2023)

Author(s):
Yash Kumar, SK Verma, Pushpa Tirkey, Shreya Paikra and Anil Kumar

Abstract:
The present investigation entitle Effect of various concentrations plant growth regulators on growth, yield and yield attributes of onion (Allium cepa L.) was conducted at Research and instruction-cum farm, Department of Horticulture, BTC, College of Agriculture and Research Station, Bilaspur (C.G.) during rabi season of 2022-23. The experiment is carried out in RBD design with three replications and nine treatments. The treatments were created with different doses of plant growth regulators in onion var. N – 53. The treatments application as a seedling treatment and foliar spray at 22 DAT and the recommended package of practices in onion were followed as per requirement. Observations were recorded at 30, 60 and 90 days after transplanting. The results showed that treatment T8, which involved Gibberellic Acid (GA3) at 60 ppm and Naphthalic Acetic Acid (NAA) as a foliar spray at 30 ppm, had the greatest impact on the growth parameters, yield parameters. Specifically, plant height, number of leaves per plant, leaf area per plant, shoot length, neck thickness, polar diameter, equatorial diameter, average weight of bulb, total yield.