Influence of gibberellic acid on growth performance of mint (Mentha arvensis L.) Cv. CIM-Unnati

Abstract

The present investigation entitled “influence of gibberellic acid on growth performance of mint (Mentha arvensis L.) Cv. CIM-Unnati” was conducted at Nursery No.4, College of Horticulture, Dapoli. Dist. Ratnagiri (MS) during the academic year 2023-24. The study was conducted using a Randomized Block Design with eleven treatments and each replicated three times. The treatments included T1 – Control (no dipping and no spraying), T2 - Dipping and spraying with GA3 50 ppm, T3 - Spraying with GA3 50 ppm, T4 - Dipping and spraying with GA3 100 ppm, T5 - Spraying with GA3 100 ppm, T6 - Dipping and spraying with GA3 150 ppm, T7 - Spraying with GA3 150 ppm, T8 - Dipping and spraying with GA3 200 ppm, T9 - Spraying with GA3 200 ppm, T10 - Dipping and spraying with GA3 250 ppm and T11 - Spraying with GA3 250 ppm. Among all the treatments studied the highest plant height (64.63 cm), plant spread (N-S) (44.79 cm) and (E-W) (38.89 cm), number of leaves (334.02), number of branches (78.73), leaf length (6.05 cm), leaf width (4.56 cm) and stem girth (13.26 mm) were recorded in the treatment T4 - Dipping and spraying with GA3 100 ppm.