Fruit growing
and viticulture of South Russia

Annotation

The purpose of this work is to study the species and varieties of ornamental flowering shrubs of the genus Weigela Thunb. in the Kuban State University Traning Botanical Garden for their use in the gardening of urban gardens and parks, as well as the use in landscape design of private territories. The object of the research is the plants of the Weigela genus (Weigela Thunb.), growing in the collection of Training Botanical Garden. The material for writing the work was field records and diaries, photographs, drawings, herbarium specimens of plants genus under study. The anatomical structure of species and varieties leaves of the genus Weigela Thunb was studied. The studies were conducted 2018-2019. In the process research, the botanical microtechnology was applied. The article presents a brief morphological characteristics of the leaves of the studied genus. The results of studying the anatomy of the representatives leaves of the genus Weigela Thumb. are presented. Analysis of the anatomical structure of the leaves of the genus Weigela Thunb. plant varieties revealed the following features. The leaf epidermis is most developed in the variety ʹNana Variegataʹ and is 2,0 mcm. The maximum thickness of the phloem part of the beam is 3,1 mcm for this variety. Xylem and columnar mesophyll are better developed in the leaves of ʹNana Variegataʹ variety, as well as the Weigela leaves are distinguished by the thickness of a spongy mesophyll. Mechanical tissue in the veins of the leaf is most expressed in the varieties of ʹNana Variegataʹ and ʹDame Blancheʹ. The distance width of the beam xylem part is approximately the same for all representatives, but the varieties of ʹCaricatureʹ and ʹRumbaʹ are outstanding according to this indicators.