The Effect of Growth Stage of Two Types of Weeds and Spraying with Glutamic Acid on some Natural products, Growth and Yield of Wheat (Triticum aestivum L.)

Abstract

Abstract A field experiment was carried out during the 2022-2023 agricultural season at the research station of the Field Crops Department - College of Agriculture - Tikrit University. It included 54 experimental units. Each experimental unit contained five lines of wheat, Triticum aestivum L., and weed seeds were planted between the wheat lines. The experiment was applied in a completely randomized block design (R.C.B.D), with three sectors, and the treatments were distributed in the arrangement of split plots. The treatments were spraying with glutamic acid during the three growth stages at three concentrations and two types of weeds (Malva praviflora and Raphanus raphanistrum). The results of the statistical analysis of the characteristics of the wheat crop showed a significant superiority in the comparison treatment (without weeds), and with a concentration of 0% glutamic, the highest germination rate for the three growth stages, as well as in the character of plant height, leaf area, total chlorophyll, number of shoots, and number of ears for the wheat crop.