EVALUATION OF PLUM VARIETIES AND HYBRIDS AS A SOURCE OF BIOLOGICALLY ACTIVE SUBSTANCES
The results of the study of biologically active substances in the fruits of 33 plum varieties, elite and selected forms grown in conditions of the Orel region are given: ascorbic acid, carotenoids, anthocyanins, leucoanthocyanins, catechins, and the amount of phenolic (P-active) substances. The best genotypes which are of interest for using them in breeding for improved chemical composition of fruit have been identified by each studied biochemical parameter: Bolkhovchanka, Evrazia-21, Zarechnaya Rannia, Zolotoye Runo, Kromskaya, Okskaya, Rekord and selections 18286, 18296, 18330, 18392, 18463, 18464, 18473, 18896, 19071 and 19109 in ascorbic acid content (over 7.3 mg/100 g); Krasa Orlovshiny, Krasivaya Vecha, Nezhenka, Okskaya, Orlovskaya Mechta, Orlovsky Suvenir, Skoroplodnaya, elite seedling 18223 and selections 18286, 18296, 18330, 18392, 18464, 18473 and 19071 in the content of carotenoids (over 1.3 mg/ 100 g) Alionushka, Vengerka Zarechnaya, Evrazia-21, Kadria, Orlovskaya Mechta, Orlosky Suvenir, Rekord, Renclod Ranniy, Tulskaya Chernaya and selection 18464 in the content of anthocyanins (over 20.0 mg/100 g); Alionushka, Krasa Orlovshiny, Nezhenka, Orlovskaya Mechta and selections 18296, 18330, 18392, 18463, 18464, 19071 and 19109 in the content of catechins (over 350.0 mg/100 g); Nezhenka, Orlovskaya Mechta, Orlovsky Suvenir and selections 18286, 18296, 18330, 18392, 18464, 18473, 19071 and 19109 in the content of leucoanthocyanins (over 400.0 mg/100 g); Alionushka, Nezhenka, Orlovskaya Mechta, Orlovsky Suvenir and selections 18286, 18296, 18330,18392, 18464, 18473, 19071 and 19109 in the amount of P-active substances; Nezhenka, Orlovskaya Mechta, Orlovsky Suvenir and selections 18286, 18296, 18330, 18392, 18464and 18473 in a complex of biologically active substances accumulated in fruit.