Legume Research

Web of Science
  • Year: 2025
  • Volume: 48
  • Issue: 11

Enhancing Morpho-physiological Characters and Productivity of Kharif Groundnut Through Application of Plant Growth Retardants under East and South Eastern Coastal Zone of Odisha

  • Author:
  • S. Lenka1,*, G.S. Kumar1, S.K. Swain2, R.R. Dash3, K.C. Pradhan3, A.K. Sethy4
  • Total Page Count: 7
  • Page Number: 1822 to 1828

1Department of Agronomy, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India

2Co-ordination Cell College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India

3OIC AICRP on Weed management, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India

4AICRP on Groundnut, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India

*Corresponding Author: S. Lenka, Department of Agronomy, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India, Email: subhrasini@gmail.com

Online Published on 10 February, 2026.

Abstract

Groundnut grown in kharif season incurs more vegetative growth with higher plant height which causes the upper aerial pegs not to reach the ground. So, less numbers of sound mature pods resulting in lower yield compared to other seasons. The aim of the following investigation was to examine the effect of different growth regulators on plant height including other morphological and physiological parameters of kharif groundnut.

The experiment was conducted during kharif sesaons of 2021 and 2022, taking three growth regulators with different concentrations in main plot i.e. Cycocel (CCC) @ 500 and 1000 ppm, Brassinosteroides (BR) @ 10 and 15 ppm, Maleic hydrazide (MH) @ 100 and 200 ppm and scheduling of applications in sub plots i.e. 30 DAS, 50 DAS and 30 and 50 DAS with an additional control for observation with cv. Dharani (TCGS-1043) variety.

The application of cycocel @ 1000 ppm recorded lowest plant height with maximum no. of primary branches and leaves / plant compared to other growth regulators and control. All physiological parameters studied in the experiment were maximum under foliar spray with CCC @ 1000 ppm. The scheduled application of growth regulators at 30 and 50 DAS decreased plant height, increased branches and leaves/plant significantly at different growth stages and also all physiological parameters compared to single 30 DAS and 50 DAS.

Keywords

Cycocel, Groundnut, Plant growth regulators (PGRs)