Vol. 12, Issue 8 (2023)

Author(s):
BP Meena, GK Kataria, CK Singh, UN Godha and Y Pandya

Abstract:
In the kharif season of 2018, a field trial was carried out at Cotton Research Station, Junagadh Agricultural University, Junagadh, to explore the influence of diverse plant growth regulators on the morphological and physiological characteristics of kharif groundnut variety GJG-31. The experiment was designed using a randomized block setup with three replications. It involved the foliar application of varying concentrations of growth regulators—PBZ, TRIA, BR, and SA—along with a control treated with water spray, administered at specific growth phases. Results indicated that TRIA, BR, and SA treatments led to increased plant height and salicylic acid (SA) treatment at 50 ppm notably resulted in the highest plant height. Additionally, SA treatment positively influenced the number of leaves per plant. Leaf area index (LAI) exhibited an initial increase up to 90 days after sowing (DAS), followed by a decline due to leaf senescence. SA treatment at 50 ppm displayed the highest LAI. Specific leaf weight (SLW) increased until pod filling, with SA at 50 ppm showing the highest SLW, relative growth rate (RGR), and crop growth rate (CGR).