Comparative analysis of the relationship between morphological, physiological, and biochemical properties in spinach (Spinacea oleracea L.) under deficit irrigation conditions

Drought is an abiotic stress factor that negatively affects plant development and causes economic losses in plant production, and its effect is getting significant every day. Spinach contains a high amount of water and drought stress affects its development as well as causing changes in its biochemical contents. In this study, it is aimed to determine the changes in the morphological, physiological, and biochemical contents of spinach grown under deficit irrigation conditions in different stages of development. For this purpose, by considering five different irrigation levels (I100, I80, I60, I40, and I20), and 4 harvest times determined according to the development periods of spinach, a total of 20 experiment units were designed with 3 replications in a completely randomized experimental design.