Field efficacy of Plant Growth Regulators on the growth, physiological and yield parameters of Fenugreek, Trigonella foenum graecum L.
*1G. Vaidehi, 2S. Malarvannan, 3V. Prakash and 4S. Anandhi Lavanya
1*Department of Horticulture, 2Department of Entomology, 3Department of Agronomy, 4Department of Plant Breeding, School of Agriculture, Bharath Institute of Higher Education and Research, Chennai – 600073 (India) *Corresponding Author: Mobile: 9790517821; Email: vaidehispices@gmail.com
ABSTRACT
A field experiment was conducted to elucidate the effect of plant growth regulators on Growth, physiological parameters and Yield in Fenugreek (Trigonella foenum graecum (L.) CV. RMT-305. The study was done at Puthur farm of Bharath Institute of Higher Education and Research, Chennai during January to May 2022. Ten different treatments (T1-GA3 50 ppm, T2-GA3 100 ppm, T3-GA3 150 ppm, T4- NAA 10 ppm, T5-NAA 20 ppm, T6-NAA 30 ppm, T7-Ethrel 75 ppm, T8 Ethrel 100 ppm, T9-Ethrel 150 ppm and T10-water spray) were tested at three concentrations and replicated thrice. Treatments were sprayed uniformly to all the plots at 30 and 60 DAS and at harvest with hand sprayer. Plant height, Number of primary branches, Days to fifty per cent flowering, Chlorophyll content in Leaves and Number of pods per plant were documented. Foliar application of 100 ppm of GA3 significantly increased the plant height observed at 30 DAS and harvest whereas it was least in the control plot. NAA 30 ppm treated plants flowered earlier compared to control. The chlorophyll content of leaves at flowering and pod filling stage was highest in plots treated with NAA 20 ppm. Application of 20 ppm NAA recorded higher number of pods per plant.