The effect of growth stimulators on the vegetative reproduction of North American tree species in the conditions of the Omsk region

Abstract

The relevance of studying the growth and development of North American cypress tree species in the Omsk region is due to the short period of their use in urban landscaping. The issues of effective production of planting material of these rocks in the West Siberian region have not been fully studied. The use of North American species in the landscaping of the city will expand the range of conifers and reduce the anthropogenic load. The research is devoted to the study of the effect of growth stimulants on vegetative reproduction by green cuttings of representatives of the Cypress family in 2018-2021 in the conditions of the southern forest-steppe of the Omsk region. It has been established that all the studied preparations have a positive effect on the rooting of green cuttings of different forms of Western thuja. The green cuttings of the studied junipers took root better under the influence of heteroauxin, kornevin and ribav extra. An increase in the diameter of the root neck in the studied rocks was observed under the influence of kornevin.