The Competitiveness of Wheat (Triticum Aestivum L.) Against Weeds at Different Seeding Rates

Abstract

An experiment was carried out in the 2017-2018 agricultural season to assess the growth and production of the wheat crop under the conditions of different weeds numbers at different plant densities of the crop. The study included two factors: the first factor was the number of weed seeds in the soil, which are (0, 14, 28, 56, 112) weed plants / m 2 and the second factor was the difference in seeding rate of the yield, which is (80, 100, 120) kg / ha. The results showed: that the increase in the seed rate was accompanied by a gradual significant increase in the plant height of the wheat yield, the number of Tillers of the crop and the grain yield, and it was also accompanied by a gradual significant decrease in the number of grains per spike and the dry weight of the weeds, and that the increase in the number of weeds per unit area was accompanied by a gradual significant decrease in the height of the plants The yield of wheat, the number of grains in the spike and the grain yield, as for the interaction between the two factors, the interaction between the seed rate of 80 kg / ha and the absence of weeds with the highest height of wheat plants and the highest number of grains in the spike, thus significantly exceeding the rest of the interaction in these two characteristics, the highest number of The crop yield and the highest yield was achieved when the interaction between the seed rate of 120 kg / ha and the absence of weeds, while the interaction between the seed rate of 80 kg / ha with the presence of 112 weed plants achieved the highest dry weight of the weed and thus it was significantly superior to the rest of the interactions in this characteristic.