Growth parameters and yield of wheat as influenced by thermal environments and herbicidal mixtures

A field experiment was conducted during rabi season of 2023-24 and 2024-25 to study the influence of thermal environments and herbicidal mixture on growth parameters of wheat at the Farm B, College of Agriculture, GanjBasoda, District Vidisha (M.P.). The experiment was conducted in split plot design with three thermal environments (15^th November, 30^th November and 15^th December) and 6 weed control treatments (W₁: Fenoxaprop-p-ethyl + Metribuzin, W₂: Clodinafop-propargyl + Metsulfuron methyl, W₃: Sulfosulfuron + Metsulfuron methyl, W_4: Metribuzin + 2,4-D, W_5: single hand weeding at 30 DAS and W_6: Weedy check) with three replications. Results revealed that maximum growth parameters (Leaf area index, Crop growth rate and Relative growth rate) and yield was under the crop sown on 15^th November as compare to other sowing dates. Among the weed control treatments, Sulfosulfuron + Metsulfuron Methyl recorded maximum growth indices (LAI, CGR and RGR) and yield.