The Effect of Allelopathic Stress of C3 and C4 Plants on the Growth Characteristics of Wheat Crop (Triticum aestivum L.)

Abstract

Abstract The experiment was carried out during winter season 2022-2023 with the aim of determining the effect of the allelopathic effort of the weed plant residues, namely Arugula (Eruca sativa) C3 plant and wild radish (Raphanus raphanistrum) C4 plant, on the wheat yield of two varieties (Adna and Ibaa). The experiment was carried out using an RCBD design in three replications. The results showed that the Ibaa variety was superior to the Adna variety in all the studied traits, including plant height of 79.6 cm, number of effective shoots 5.29 strands. Plant-1, number of grains 28.26 grains. spike-1 per spike, weight of a thousand grains 31.91 grains. g, and grain yield. 3.63 tons.h-1 for both seasons as for the species level, the C3 plant was superior in all the studied characteristics to the C4 plant. It gave a plant height of 83.2 cm, and the number of effective shoots was 5.93 shoots. Plant-1, number of grains was 29.17 grains. The values of adhesion decreased with increasing levels of residues in terms of allelopathic influence, while C4 plants were less affected in these traits.