Components of photosynthetic activity of cherry trees in the Right-Bank Forest-Steppe of Ukraine

The article presents the results of research on photosynthetic activity cherry trees. aim was to study morphological, growth and biochemical characteristics leaf cover trees depending time fruit ripening. Observations, analysis laboratory studies reveal morphological features annual tree growth, total surface content green pigments in leaves which is one main indicators potential It established that Dar Mlieva characterized by largest length increments among early ripening varieties, Melitopolʹsʹka krapchasta variety – medium Drogana zhovta late varieties. Aborehenka had average shoots, Mirage smallest length. number shoots new ramules make shoot-forming ability. Cherry varieties are divided into groups according obtained data: with a high degree shoot formation Mlieva, Zoryana, Mirage, zhovta; middle Mliivsky zhovta, Aboriginal, Meotida, Amazon low Alyonushka, Biryuza, Donetsky uholʹok. Low area plantations negatively affected processes photosynthesis productivity aged 6–8 years made 14–35 % optimal. chlorophyll depended largely pomological variety, while for maturity fruit, dependence not detected. Meotida differed favorably carotenoids, a, b, as well sum + bchlorophylls . these exceeded other studied 25 average. Key words: sweet cherry, photosynthesis, surface, increments, content.