Effect of Nutrio - Hormonal Consortia on Growth and Yield in Groundnut

Abstract

This study addresses a knowledge gap in understanding the interaction effect of nutrient-plant growth regulators on groundnut which plays a vital role in morpho-physiological processes for achieving enhanced productivity. The main goal was to evaluate how different nutrio-hormonal combinations affect groundnut traits. The experiment was conducted in pot culture at glasshouse, Department of Crop Physiology, TNAU, Coimbatore, utilizing a factorial completely randomized design. Two genotypes, BSR 2 and VRI 8, received five treatments with four replications: T1 - control (foliar water spray), T2 - Nutrio hormonal consortia 1, T3 - Nutrio hormonal consortia 2 (T2 + K2SO4), T4 - Groundnut booster 1 (FeSO4, K2SO4, MgSO4, Borax), and T5 - Groundnut booster 2 (T4 + Salicylic acid + NAA-Naphthalene Acetic Acid). Application of T5 to VRI 8 showed significant results, with higher leaf area (2297.83 cm²) and specific leaf weight (19.87 mg/cm²) where as BSR 2 had smaller leaf area (872.86 cm²) and higher specific leaf weight (51.55 mg/cm²). VRI 8 had fewer pods but higher yield (8.16 g/plant) than BSR 2 (7.07 g/plant). In conclusion, the foliar application of T5 - Groundnut booster 2 with the VRI 8 variety holds promising potential for enhancing groundnut yield.