Effect of Different Concentrations of Copper Spray on the Growth and Yield Characteristics of Different Cultivars of Bread Wheat (Triticum aestivum L.)

Abstract

The growth and yield characteristics of five different varieties of bread wheat (Triticum aestivum L.) were examined in this study, which was conducted at the research station of the Field Crops Department of the College of Agriculture / University of Tikrit during the agricultural season (2022-2023). The tested concentrations of copper were 0, 5, 10, and 15 mg L-1. The experiment used a split-plot system with three replications and a Randomized Complete Block design (R.C.B.D). Six factors were analyzed for this study: flowering percentage, flag leaf area, spike length, spike number per m2, grain yield per spike, and grain yield per m2. The values for the characteristics (area of the flag leaf, number of spikes m-2, number of grains per spike, and total grain yield) indicate that the interaction between Bohuth 22 and a concentration of 15 mg L-1 was superior. The values are (52.23 cm2), (401.33 spike m-2), (75.16 grains of spike-1), and (3785.6 kg.h-1). The characteristic of spike length (16.13 cm) was particularly well-represented by the interaction between the cultivar Bohuth 10 and the concentration of 15 mg L-1.