Multiple flowering of blackberry and its role in the formation of this crop harvest in the conditions of Central Russia

The materials of the article present data on various manifestations ability repeated flowering and fruiting during one growing season by representatives subgenus Eubatus Focke (blackberry). research was carried out in experimental plantings Russian Research Institute Fruit Crop Breeding (city Orel). Classical methods cultivar study were used. Experimental blackberry cultivars have different maturation periods, so delayed formation peduncles is unequal importance when them. In this regard, purpose work to phenomenon multiple conditions Orel region Russia, identify breeding forms with greatest severity trait, show its positive negative sides. As a result, it has been found that blackberries flower repeatedly characteristic feature crop, for number valuable economic Central Russia. Three main types are shown, which manifest themselves differently studied forms. Based obtained, we believe early ripening preferred middle part