Dynamics of osmotic pressure of cellular juice in soybean plant tissues

There were studied 19 soybean samples of germplasm collection from various origins and degree of adaptation to high summer temperatures and deficiency of precipitation on a level of potential osmotic pressure of cellular juice in bottom internodes of plants. As a result of researches high-quality distinctions on this parameter in ontogenesis have been established. Four groups of varieties, distinguished by ontogenetic dynamics and level of osmotic pressure of cellular juice at late stages of development of plants are allocated