Document Type : Original Article
Authors
Department of Laboratory, General Company for Grain Board- Kirkuk - Ministry of Trade , Iraq
Abstract
The experiment aimed to investigate the effect of spraying a combination of glutamic acid and arginine (0 glutamic + 0 arginine, 200 mg L⁻¹ glutamic and 200 mg L⁻¹ arginine, 100 mg L⁻¹ glutamic + 100 mg L⁻¹ arginine, 100 mg L⁻¹ glutamic + 200 mg L⁻¹ arginine, 200 mg L⁻¹ glutamic + 100 mg L⁻¹ arginine, and 200 mg L⁻¹ glutamic + 200 mg L⁻¹ arginine) on nine wheat genotypes (Al-Fayyad, Mawaddah, Buhouth 22, Babylon 113, Gomeza 9, Giza 164, Sakha 61, Sakha 95, and Misr 3), focusing on yield, extraction percentage, ash content, and Pelshinki test, as well as farinograph tests (water absorption percentage, dough development time, stability, and departure time). A complete randomized block design with split plots was used, where the main plots included the combinations of glutamic acid and arginine. The results showed significant influence of the introduced genotypes (Misr 3, Gomeza 9, and Giza 164) Compared other genotypes. For the yield trait, the genotype Gomeza 9 exhibited the highest average (7.95 tons ha⁻¹), followed by Misr 3 and Giza 164 with averages of (7.88 and 7.85 tons ha⁻¹, respectively). The genotype Misr 3 also showed significant superiority in the extraction percentage, ash content, Pelshinki test, and farinograph tests (water absorption percentage, dough development time, stability, and departure time) with averages of (79.26%, 2.00%, 119.61 minutes, 67.22%, 4.78 minutes, 3.27 minutes, and 8.05 minutes) in that order. The spraying treatment (200 mg L⁻¹ glutamic acid + 200 mg L⁻¹ arginine) was influence for all studied traits. The interaction between the study factors indicated that the genotype Misr 3 significantly outperformed the other genotypes. Therefore, future attention can be given to these two introduced genotypes with replanting in different seasons and locations to determine their stability within the region and its environmental conditions.
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