Enhancing Growth and Herbage Yield in Fenugreek (Trigonella foenum-graecum L.) var. F1 through Bio-stimulant Applications

An experiment entitled “Enhancing growth and herbage yield in fenugreek (Trigonella foenum-graecum L.) var. F1 through bio-stimulant applications” was conducted during 2025 at the Department of Horticulture, Adhiparasakthi Horticultural College, Ranipet, Tamil Nadu, to evaluate the influence of various bio-stimulants on the growth and physiological attributes of fenugreek. The study was laid out in a randomized block design (RBD) with ten treatments and three replications, comprising Panchagavya (1%, 2%, 3%), humic acid (1%, 2%, 3%), fish amino acid (1%, 2%, 3%), and a control. Observations recorded 20 days after sowing revealed significant differences among treatments. The highest plant height (15.7 cm), root length (7.2 cm), and total herbage yield (15.2 t ha⁻¹) were obtained with fish amino acid @2% (T₇), while the maximum chlorophyll content (65.6 SPAD) and leaf length (4.3 cm) were recorded with fish amino acid@ 3% (T₄). Humic acid @ 2% (T₆) recorded the highest biomass (2.34 g plant⁻¹) and number of leaves (8.1). The control(T₁) recorded the lowest performance for all parameters. Overall, bio-stimulants, particularly fish amino acid and humic acid, significantly enhanced vegetative growth, chlorophyll content, and herbage yield of fenugreek under organic cultivation