In recent years, the demand for walnuts has increased due to their recognition as a nutritious food and a versatile ingredient in cooking and baking. As a result, walnut production has become a significant industry in many countries, providing income and employment opportunities for growers and processors. Despite the fact that one of the most important products in the world and Syria is walnuts, there has been little research on irrigation and, in particular, water productivity. Therefore, the purpose of this study is to examine the irrigation status and water productivity in several walnut orchards in As-Suwayda province, which is a significant production area for this product. In the course of this research, water productivity, irrigation water volume, and the crop performance of walnut orchards in three of the most important producing locations of this commodity in the province of As-Suwayda (Sweida) were evaluated and compared. Drip irrigation and surface irrigation methods were investigated. The t-test was used to compare irrigation water levels in orchards with gross water requirements. Drip irrigation systems in orchards save around 1700 m3 ha-1 of irrigation water, reduce yields by an average of 145 kg ha-1, and boost water productivity by roughly 0.02 kg m3, according to the findings, but none of these differences were statistically significant at the 5% level. In general, there was not a discernible difference found between drip and surface irrigation systems in terms of performance values, amount of water applied, or water productivity. Manuscript profile

The research on how phytohormones and light affect the morphogenetic responses of potatoes in culture conditions is presented in this article. Researchers looked at how growth promoters affect the regulation of potato morphogenesis in in vitro cultures of different potato varieties. They also looked at how light quality affects this regulation. Research has been conducted on Kazakh selection potatoes, which are commonly grown in Northern and Central Kazakhstan. In the course of the research, various variants of phytohormones and light quality were used for the growing and developing of micro-gears in vitro. The light quality has a different action on the potatoes' speed of growth. For example, rhizogenesis for the Tamyr variety has increased because of red light use. For the Aksor, Orbitaa, and Nerli varieties the best results were got in case the white light has been used. The concentration of the phytohormones has an influence on the potatoes growing. So, the most effective leafiness of shoots of all considered potato varieties has been gotten by auxin use in the concentration of 0.1 and 0.5 μM. Manuscript profile