Abstract:
The study subject of the experience was the Arapaho, Thornfree and Triple Crown blackberry varieties. The distance of plantation is 3.0 x 1.5 m. The experimental plot it was placed in the „Pomrubus” Ltd. founded in 2014 year. The research was conducted during years 2016-2017. During the research, it was studied some groups of biological active substances in the blackberries leaves. It was established that the quantity of biological active substances in the blackberry leaves depends of the phenophases of the development of the plants. The infusion obtained from the blackberry leaves have a saturated extractive complex.