Scientists & Staff
- Tree improvement of black walnut, black cherry, northern red oak, butternut, American chestnut, and figured sugar maple that will increase productivity through improved growth rate, timber form, wood quality, and resistance to exotic disease.
- Identify and conserve butternut throughout the Central Hardwood Region.
- Clonal forestry of walnut comparing grafted advanced selections vs. seedlings.
- Utilize neutral genetic DNA markers for managing breeding stock and for mating control of open-pollinated breeding populations.
- Develop robust and reliable progeny test methods for walnut, northern red oak, and black cherry field trials.
Research InterestsIn cooperation with public and private forestry nurseries, creation of seed orchards for the production of improved seed for black walnut, black cherry, and northern red oak seed. Development of novel and valuable hybrid walnut selections. In cooperation with the American Chestnut Foundation, creation of two chestnut blight resistant seed orchards for Indiana. Development of butternut canker resistant seed orchards for landowners in much of the Central Hardwood Region. Utilize DNA markers and current progeny tests to develop 2nd generation seed orchards for additional improvement and future seed orchards. Separate butternut hybrids from pure butternut and conserve an adequate genetic base for long term restoration of butternut. Develop white oak and northern red oak planting stock with precocity (early acorn production) and high acorn yield to provide mast for wildlife.
Why This Research is ImportantHTIRC's main objective is the production of quality planting stock for public and private landowners who are interested in reforestation and for the fine hardwood timber companies interested in utilizing plantation grown timber. By developing advanced lines of improved planting stock, the outcome of our research will increase the profitability of plantation forestry and provide future economic benefits to the fine hardwood forestry industry in the United States. Our attention to conserve and maintain genetic diversity in our breeding populations will help promote long term sustainability of these hardwood species for future reforestation.
- University of California, M.S. Plant Biology - Ecology Specialization, 1997
- University of California, B.S. International Agricultural Development Plant Science Specialization, 1993
- USDA Juglans Crop Germplasm Committee
- Indiana Nut Growers Association
- Indiana Walnut Council
- Indiana Chapter of the American Chestnut Foundation
Featured Publications & Products
- McKenna, J.R.; Ostry, M.E.; Woeste, K. 2011. Screening butternut and butternut hybrids for resistance to butternut canker. In: Fei, Songlin; Lhotka, John M.; Stringer, Jeffrey W.; Gottschalk, Kurt W.; Miller, Gary W., eds. Proceedings, 17th central hardwood forest conference; 2010 April 5-7; Lexington, KY; Gen. Tech. Rep. NRS-P-78. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 460-474.
- Farlee, Lenny; Woeste, Keith; Ostry, Michael; McKenna, James; Weeks, Sally. 2010. Identification of butternuts and butternut hybrids. FNR-420-W. West Lafayette, IN. Purdue University Cooperative Extension Service. 11 p.
- Farlee, Lenny; Woeste, Keith; Ostry, Michael; McKenna, James; Weeks, Sally. 2010. Conservation and management of butternut trees. FNR-421-W. West Lafayette, IN. Purdue University Cooperative Extension Service. 10 p.
- Woeste, Keith; Farlee, Lenny; Ostry, Michael; McKenna, James; Weeks, Sally. 2009. A forest manager's guide to butternut. Northern Journal of Applied Forestry. 26(1): 9-14.
- Woeste, Keith E.; McKenna, James R. 2004. Walnut genetic improvement at the start of a new century. In: Michler, C.H.; Pijut, P.M.; Van Sambeek, J.W.; Coggeshall, M.V.; Seifert, J.; Woeste, K.; Overton, R.; Ponder, F., Jr., eds. Proceedings of the 6th Walnut Council Research Symposium; Gen. Tech. Rep. NC-243. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 9-17
Publications & Products
- Ebrahimi, Aziz ; Lawson, Shaneka S.; Frank, Graham S.; Coggeshall, Mark V; Woeste, Keith E.; McKenna, James R. 2018. Pollen flow and paternity in an isolated and non-isolated black walnut (Juglans nigra L.) timber seed orchard. PLOS ONE
- Hefty, Andrea R.; Aukema, Brian H.; Venette, Robert C.; Coggeshall, Mark V; McKenna, James R.; Seybold, Steven J. 2018. Reproduction and potential range expansion of walnut twig beetle across the Juglandaceae. Biological Invasions
- LaBonte, N. R.; McKenna, J.R.; Woeste, K. 2016. Effectiveness of a detached‐leaf assay as a proxy for stem inoculations in backcrossed chestnut (Castanea) blight resistance breeding populations. Forest Pathology
- McKenna, James R.; Geyer, Wayne A.; Woeste, Keith E.; Cassens, Daniel L. 2015. Propagating figured wood in black walnut. Open Journal of Forestry. 05(05): 518-525.
- McKenna, James; Woeste, Keith; Ostry, Michael. 2012. Breeding resistance to butternut canker disease. In: Sniezko, Richard A.; Yanchuk, Alvin D.; Kliejunas, John T.; Palmieri, Katharine M.; Alexander, Janice M.; Frankel, Susan J., tech. coords. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. Gen. Tech. Rep. PSW-GTR-240. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. p. 209
- McKenna, James R.; Rueda-Krauss, Oriana; Beheler, Brian. 2011. A highly efficient machine planting system for forestry research plantations—the Wright-MSU method. Tree Planters' Notes. 54(2): 32-37.
- Ross-Davis, Amy; Huang, Zhonglian; McKenna, James; Ostry, Michael; Woeste, Keith. 2008. Morphological and molecular methods to identify butternut (Juglans cinerea) and butternut hybrids: relevance to butternut conservation. Tree Physiology. 28(7): 1127-1133.
- McKenna, James; Woeste, Keith. 2004. Planting and care of fine hardwood seedlings: Diagnosing and controlling wildlife damage in hardwood plantations.. FNR-216. Purdue University Department of Forestry and Natural Resources. West Lafayette, IN. 8 p.
- McKenna, James; Woeste, Keith. 2004. Planting and care of fine hardwood seedlings: Fertilizing, pruning, and thinning. FNR-215. Purdue University Department of Forestry and Natural Resources. West Lafayette, IN. 8 p.
- McKenna, James R.; Epstein, Lynn. 2003. Susceptibility of Juglans Species and Interspecific Hybrids to Agrobacterium tumefaciens. HortScience 38(3):435-439
- Vahdati, Kourosh; McKenna, James R.; Dandekar, Abhaya M.; Leslie, Charles A.; Uratsu, Sandie L.; Hackett, Wesley P.; Negri, Paola; McGranahan, Gale H. 2002. Rooting and Other Characteristics of a Transgenic Walnut Hybrid (Juglans hindsii x J. regia) Rootstock Expressing rolABC. Journal of the American Sociaty of Horticulture Sciences 127(5):724-728
Last modified: Tuesday, June 10, 2014