Economic and biological evaluation hybrids of Prunus cerasifera Ehrem. var. pissardii Bail. in conditions of the Southern Urals

Ural federal agricultural research center of the Ural department of the Russian Academy of Sciences, 620142, c. Yekaterinburg, Belinsky st., 112-a, Russia

^* Corresponding author: tatyana slepneva@mail.ru

Abstract

Given is the analysis of the basic economic and useful features of 9 genotypes F₂ by hybrids of russian cherry plum (Prunus cerasifera var. pissardii) in the conditions of the forest-steppe of the southern Urals. On the research period during, three selection forms: ‘Alma’, G 7-116, 9266 had a degree of freezing to 1.8 mark, the others no more than 1.0 mark. During the winter period of 2017/18, the death of generative buds by all genotypes was from 2.5 to 3.0 marks (25-50 %), which negatively affected to crop capacity. According to the results of research identified were four genotypes with weak growth of tree, which the height varies from 2.8 m (P 3-92) to 3.0 m (‘Duduka’). The group of medium-sized plants got five hybrid forms, where the highest plant height (4.5 m) was found by the genotype 9-266 – 4.5 m. The volume of the crown of the following forms varies from 4.2 m³ (P 3-92) to 17.8 m³ (9-266). Two genotypes have been identified for use in selection on a complex of attributes (large-fruiting, taste characteristics, crop capacity): ‘Duduka’, G 7-116. For the study of production was selected the sampling of the sort G 7-116.