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We examine public opinion of planting genetically improved poplars on public lands in western Canada. Policy scenarios consider the use of three different breeding methods (traditional selective breeding, genomics-assisted breeding, and genetic modification), each with and without poplars being used for biofuels. We employ a choice experiment to provide alternative outcomes to policy scenarios and to investigate differences among characteristics of respondents. Overall, a majority of respondents voted in favour of policies that allowed improved poplars on public land if the fibre is used to generate biofuels. Adding biofuel production to a policy scenario increases the probability of acceptance by 17%-32%. In contrast, the various types of breeding technology do not matter as much regarding public acceptance. Responses differ among segments of the population, but these differences do not greatly influence choices. Attributes that increase the probability of acceptance are being a male, being from Alberta, and being from a population centre of 10 000-100 000 people (relative to centers that are >100 000 people). Attributes that decrease the probability of acceptance are age, being from British Columbia, and being from a population centre of <10 000 people (relative to centers that are >100 000 people). Despite these significant patterns of preferences, there is substantial uncertainty underlying the responses. [ABSTRACT FROM AUTHOR]