Influence of plant growth regulators on morphological and physiological parameters of groundnut (Arachis hypogaea L.) cv. GJG-9

Abstract

A field experiment was conducted during the kharif 2017 at Cotton Research Station, Junagadh Agricultural University, Junagadh to study the effects of different plant growth regulators on morphological and physiological parameters of groundnut cv. GJG-9. The investigation was carried out in RBD design three replications and foliar application of different concentration of growth regulators such as GA3 (50, 100 ppm), NAA (40, 80 ppm), TRIA (2.5, 5.0 ppm), BR (10, 15 ppm) and water spray (control) at 40 & 55 DAS. The experiment results revealed that foliar application of PGRs increased the plant height, no. of primary branches, no. of leaves and increase was more in GA3 @ 100 ppm treated plants. Among different treatments, significantly higher LAI (3.71), CGR (24.43 g m-2 day-1) and RGR (0.049 g g-1 day-1) were observed in GA3 @ 100 ppm treated plants at 70 DAS as compared to control.