Environmental Plasticity and Stability of Introduced Euramerican Poplar Hybrids Depending on Climate Variation

Abstract

Euramerican poplars are used in many countries of the world, but they are not always suitable for the cold climate of the northern regions. In particular, they are not winter-resistant enough for Russia’s conditions. Field testing of 23 clones from 10 varieties of these poplars in the forest steppe of the Central Black Earth Region of Russia allowed identifying varieties that are winter-resistant in these conditions. They have high survival and productivity. The study of them during various periods of growth, using the Eberhart and Russell method, made it possible to identify a number of varieties with not only high productivity and survival, but also with considerable environmental plasticity to the changing weather and climatic conditions of the region.