Kolyada N.A.
Siberian herald of agricultural science 2014; (6): 61-65
Morphological traits of the vegetative and reproductive organs of Catawba rhododendron cultivated in the arboretum of the V.L. Komarov Mountain-Taiga Station are described. An investigation into the rhythm of seasonal development has shown that Catawba rhododendron under conditions of the arboretum belongs to a group of plants with late beginning and late end of vegetation. Blossoming begins at the effective temperature sum of 412-505 °C and lasts 12 days depending on weather conditions of a year. The success of introduction and acclimatization was evaluated by the N.A. Kohno method. It has been established that Catawba rhododendron is related to plants with the full degree of acclimatization. It demonstrates the success of adaptation of the plant to local environmental and climatic conditions and the practicability of further work on reproduction and cultivation of the plant. Complex evaluation of ornamental qualities by 10 criteria has revealed high degree of Catawba rhododendron ornamentality.
