Effect of bio-stimulants on grain yield and its attributes on bread wheat (Triticum aestivum L.)

A field experiment was conducted at the Research farm of the Department of Agriculture, Maharishi Markandeshwar University, Mullana, Ambala during Rabi season of 2023 to determine the "Effect of bio-stimulants on growth and grain yield of bread wheat (Triticum aestivum L.)”. The experiment was laid out in a Randomized Block Design (RBD) with three replications and nine treatments applied to wheat variety HD-3086. The treatments were (T₁) Control (RDF), (T₂) Organic Carbon (Biochar), (T₃) Seaweed extract, (T₄) Humic acid, (T₅) Hairamin, (T₆) Humic acid + organic carbon, (T₇) Seaweed extract + organic carbon, (T₈) Seaweed extract + Humic acid, (T₉) Seaweed extract + Hairamin. The data was recorded on plant growth parameters and grain yield of wheat. All the growth and yield parameters, i.e. plant height, dry matter accumulation/m2, total number of tillers/m2, number of spikes/m2, number of grains per spike, 1000 grains weight, grain yield, straw yield, biological yield were found to have maximum value where Seaweed extract + Hairamin (T₉) was applied as compared to all other treatments, whereas, the lowest value of all growth and yield parameters were found in control (T₁).