A subspecies of such a fruit and berry crop as currants, with a dark color of berries, which will be discussed in more detail in this article, is a representative of varieties with an average period of fruit ripening. The black currant Zusha appeared at the All-Russian Research Institute of Breeding of Fruit Crops, thanks to the works of such breeders as T.P. Ogoltsova, S.D. Knyazev, L.V. Bayanov, by selection of subspecies Minai Shmyrev and Ershistaya. In 2001 [...]