Productive longevity of the black currants in the middle tayga subzone (Komi Republic)

Abstract

The results of the study of black currant varieties in the Botanical garden of the Institute of biology of the Komi Scientific Center of the Ural branch of the Russian Academy of Sciences are presented. The object of study was to determine the degree of longevity and select promising varieties in the climatic conditions of the middle subzone of the taiga. The following economically useful characteristics were analyzed: winter hardiness, phenological phases, productivity, largefruiting (berry weight). Methods of grouping and evaluating differences among groups were used. It is established that the varieties of black currants are winter hardy and remain productive in the conditions of middle taiga subzone for ten years or more. The varieties ‘Cerera’ (2.9 kg per bush), ‘Naslednica’ (2.6) and ‘Lentyaj’ (2.4) are found to be the most productive. Large-fruited varieties are ‘Seyanec Golubki’(1.58 grams), ‘Naslednica’ (1.54) and ‘Lentyaj’ (1.5). The prospects of growing black currant in the middle subzone of the taiga are confirmed. The promising varieties are revealed: ‘Naslednica’, ‘Lentyaj’ and ‘Cerera’.