ASSESSMENT OF RASPBERRY VARIETIES REPAIRABLE BY ECONOMICALLY USEFUL FEATURES IN CONDITIONS OF CULTIVATION IN FRUIT AND BERRY NURSERY OF INSTITUTE OF AGROBIOTECHNOLOGY FITZ KOMI NC URO RAS

In the Komi Republic, the set of climate-adapted varieties of berry crops is very limited. The assortment identified as a result of the study will be proposed for implementation in KFH, horticultural societies and household farms of the Republic of Komi. Of the berry crops bred in the republic, red raspberries (R. Idaeus L.) are of particular importance for the North, as a source of valuable food and medicinal substances. Its fruits contain sugars (up to 10%), organic acids (up to 2.5%), tannins and coloring substances, salts of iron, potassium, copper; pectin; vitamins of group B, PP, folic and ascorbic acids, carotene, sitosterol and other biologically active compounds. In recent years, interest has been revealed in repairing and photoneutral forms of raspberries, the fruits of which ripen after the fruiting of all berry crops traditional for the North and prolong the flow of fresh products. The object of study is a raspberry collector's nursery. Research methods - stationary experience, methods of statistical analysis of data. In 2018, the laying of a collection nursery of raspberry repair forms began: winter-resistant; with high yields and coarseness. Varieties with a complex of economically useful features are noted: - Ruby necklace variety in terms of sugar content (4.69%), dry substances (11.67%), high productivity (0.59 kg/pog. m), coarseness (average berry weight - 6.50 g), taste (tasting rating 5 points) and commercial and consumer qualities; - variety Firebird in terms of vitamin C content (57.02 mg%), good productivity (0.55 kg/pog. m), large fruit (average berry weight - 6.60 g), maximum berry weight (9.29 g), commercial and consumer qualities; - Hercules variety in vitamin C content (59.14 mg%), good productivity (0.56 kg/pog. m), coarseness (average berry weight - 6.92 g), maximum berry weight (9.00 g), commodity and consumer qualities.