Because of their rapid growth, the U.S. Department of Energy (DOE) considers poplars, like cottonwoods and aspens, to be leading candidates for tree farms that can provide sustainable sources of materials and energy.
Funded by a DOE grant, we have a joint research project with Oregon State University to examine compositional traits in poplars, including their ability to sequester atmospheric carbon dioxide, a greenhouse gas.
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Our work is also looking at how to partition carbon into specific portions of the plant, such as roots, and into types of natural plant compounds that are highly resistant to breakdown in the environment.
Poplars are considered the model for tree biotechnology and genomics. The results of this program will have application in other energy crops.