Productivity and quality of red raspberries (R. Idaeus L.) in the Komi Republic
Red raspberry (R. Idaeus L.) in terms of antioxidants, high antioxidant capacity and anticarcinogenic properties surpasses most berry crops, including wild plants (blueberries, lingonberries and blueberries), which have received recognition on the world market precisely for these properties. In order to identify the most adaptive varieties of berry crops according to the complex of basic economically useful traits, in 2005, new collection plots of berry crops were laid on the basis of the Research Institute of Agriculture of the Republic of Komi. In 2021, the economically valuable qualities of remontant raspberry were studied on experimental plots established in 2018 and 2020. Productivity, yield, weight of one berry, general condition and biochemical composition of berries were analyzed, the degree of their resistance to gray rot was determined. As a result of the study, according to a complex of economically useful traits, the best varieties were identified: Ruby Necklace, Inaccessible, Firebird, Bryansk Divo. Their productivity varied within 10.7 t/ha (Bryansk Divo) - 13.7 t/ha (Ruby Necklace), the potential yield was realized at the level of 48.8 - 69.0 %. The leader among the remontant raspberry varieties grown in the conditions of the Komi Republic, by all indications, is the Ruby Necklace variety.