Hammad K. Photoperiod influence on dynamic of carbohydrate content and enzymes activity of carbohydrate exchange iv soybean leaves

The object of study: carbohydrate metabolism, as factor of adjusting of rates development of plant in different photoperiodic terms. The aim of study: tu set correlation and to define the dynamics of maintenance of carbohy-drates and activiti of basic enzymes of their synthesis and breaking up in the day’s photoperiodisms loop in the leaves of short-day and photoperiodic neutral standards and isog-enics lines of soybean. Methods researches: determination of content sugars and polysaccharides, activitiy of amy-lases, SFS, invertase, spectrophotometry, centrifugation, statistical methods. Theoretical and practical results, new-ness: High intensity of carbohydrate exchange stipulates the sufficient supply of carbohydrates for realization from morphogenesis processes, then shows up in ability of photoperiodic neutral lines of soybean to detain not transi-tion to flowering in the conditions of short photoperiod. The sphere of application: fundamental and applications biochemistry plants.