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Tennessee foresters helping to return chestnuts to American forests
Date:9/23/2009

stable wood."

Making the resistant tree available to the public will take longer still.

"These plantings are not the final answer. We need several more experiments to really test the Foundation's breeding lines and blight resistance."

TACF, which provided the hybrid stock, has produced multiple lines of blight-resistant seedlings. In 2010, partners will plant an additional 900 to 1,000 seedlings of the American chestnut in national forests in Tennessee and Virginia. Plantings will include all generations of the American chestnutapproximately 700 will be blight-resistant.

"We really want to test which are the best families. All that will take many, many years. I'll be retired, probably, before that is done."

Clark works closely with Dr. Scott Schlarbaum, director of UT's 50-year-old Tree Improvement Program. UT TIP provided the necessary infrastructure for the Forestry Service to implement nursery and field studies of chestnut material. UT TIP has provided technical assistance to develop the experimental designs for testing, and they will assist the Forest Service in monitoring the research. They have also provided an avenue for partnerships with state forestry divisions for nursery research.

"Keeping track of the genetic identity of a tree from nursery into the field is a tremendous task," Clark said. "UT has a well-developed program in hardwood seedling restoration. We can tap into that expertise."

Though her work will help re-establish a tree with significant forest and economic potential for Tennessee and other southern states, the long-term influence will go much further.

"The biggest impact is to provide a road map for other species. Many trees have exotic pest concerns. This project provides hope for those other species. If we are successful, this will be one of the greatest triumphs in the history of forest conservation."


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Contact: Margot Emery
memery@tennessee.edu
865-974-7141
University of Tennessee at Knoxville
Source:Eurekalert  

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