Abstract
Multi-year results of research of Miscanthus x giganteus cultivation in several parts of Ukrainian Forest-Steppe zone: western, central, and left parts are presented. The weather conditions at four research sites, based on the meteorological data for years 2011-2015 were analysed. Two subzones of unstable and insufficient rainfall distribution were selected. The influence of climatic conditions to Miscanthus x giganteus production was evaluated. The equation of the regression of yield dependence on hydrothermal coefficient and planting density was calculated. It was established that the indexes of environmental conditions in observed climate zones of Ukraine varied from - 0.41 to 0.29 conventional units. The proposed approach provided the opportunity to predict the yield and energy output of Miscanthus x giganteus when the data of planting density are known.