New small fruit cultivars from Cacak: 2. The new black currant (Ribes nigrum l.) cultivar 'Cacanska Crna'

The work on black currant breeding at Cacak by the method of planned hybrid ization has been pursued since 1980. Up to now, some 100,000 hybrid seeds w ere obtained and 15,000 hybrid seedlings were planted out. Some 20 promisin g hybrids were singled out, and one of them (I/75) was named and released a s 'Cacanska Crna'. Breeding objectives are developing black current cultiva rs superior to the existing ones in their hardiness to late spring frosts, cropping and fruit quality (anthocyanins and ascorbic acid), with long stri gs. Special attention is being paid to developing cultivars suited to mecha nized harvesting, with erect bushes and berries easily separating from the stalk. New cultivar 'Cacanska Crna' was obtained in 1980 from open pollinat ion of cv. 'Malling Jet' and was selected in 1984. The bush is vigorous. Th e branches first grow erectly and later become spreading under the weight o f the crop. The leaf is large, dark green, with pronounced venation. It has large and elongated buds. The raceme has long central axis bears 10-15 flo wers. The flower is large, with green yellow petals. It is self-fertile. Cr opping is abundant. The bud burst and flowering time is mid-early. So far i t has not shown pronounced susceptibility to the adverse biotic and abiotic factors. Ripening season is mid-late. The strigs are long averaging 8,5 be rries. The berries are large (0,82 g), averaging 42 seeds, separating easil y from the fruit stalks. The berries have 15,1% of soluble solids and 2,88% of total acids. The fruit is very suitable for fresh consumation, suitable for freezing and very suitable for processing.