From left, ORNL's Biruk Feyissa holds a five-month-old poplar tree expressing high levels of the BOOSTER gene, while colleague Wellington Muchero holds a tree of the same age with lower expression of ...

SEBEKA, Minn. -- While researchers rush to develop new biomass sources for cellulosic ethnanol, Minnesota for a decade has been working on short-rotation, intensive of culture trees for energy and ...

DULUTH — It’s been said that the true meaning of life is planting a tree "under whose shade you do not expect to sit," a hint, of course, that you’ll likely be dead before the tree gets that tall. But ...

Throughout Madison County, much of our forest is dominated by a tall, pale-barked tree that grows ramrod straight. Often called “yellow poplar” by loggers and sawmill owners, it’s also known as “tulip ...

When our son was younger, he would collect the bright yellow leaves as they dropped from the towering tulip poplars in our yard in the fall. He considered them golden treasures and insisted on taping ...

I have a poplar tree in my backyard that is 1 1/2 years old. Over the past year and a half it has done a few funny things. Upon planting it, the leaves went yellow in the summer. I think we were over ...