The comparative study of anatomical structure of stem and ovule development of four cultivars of Glycine max L. merr in water deficit stress
Drought stress is one of the most important limiting factors that affect different aspects of plants vegetative and reproductive growth.It is one of the most important limiting factors of crop productivity.Regarding to the importance of soybean as an oilseed plant, and in order to identify the drought tolerant cultivars as well as evaluating of the