Citation | Al-Sultani, A.T.K., A.S. Hassoon and F.A. Almosawi. 2025. The effectiveness of tryptophan and foliar spraying in improving some production and quality characteristics of oats. Sarhad Journal of Agriculture, 41(4): 1734-1741. DOI | https://dx.doi.org/10.17582/journal.sja/2025/41.4.1734.1741