One critical aspect for operators of the wood energy market is the quantification of above ground biomass production in establishing contracts before harvest. The preparation of a biomass regression equation for individual SRF yield is expensive and time-consuming for most operators. The aim of this study is to develop equations for a non-destructive estimation of biomass yields easy to use. The data collected were utilized to develop exponential functions in the form W = bDC (where W is the total shoot wet or dry weight and D is the diameter at breast height) that give a reasonable estimate of above ground biomass for individual shoots. Keywords: biomass production, energy crops, poplar.