Scientists & Staff
Experimental Forests & Ranges
J.W."Jerry" Van Sambeek
Research Plant Physiologist
202 Natural Resources Building
Columbia, MO 65211-7260
Phone: 573-875-5341 x233
I currently work on research projects that focus on vegetation management in hardwood plantings using native and legume ground covers or interplanting nitrogen-fixing shrubs or trees. We know the addition of nitrogen-fixing plants in tree plantings can enhance establishment and early growth of black walnut; however, we know little about the interaction between nitrogen-fixing plants, oaks, and other Central Hardwood species. New studies are looking at native grasses to identify species that are less competitive than the introduced forage grasses for use in nut tree orchards. In cooperation with the University of Missouri Center for Agroforestry, we are evaluating shade tolerance of native and forage grasses and legumes for use as ground covers in various agroforestry practices and managed woodlands. I plan to continue adding new information to the vegetation management database that was started to evaluate response of black walnut and other hardwood seedlings and saplings to various ground covers and other establishment practices. Percent change in tree growth compared to trees in vegetation-free plots or plots with weeds is being determined from existing publications and file reports to determine if we can make ground cover recommendations without having to field test all the possible combinations of tree species and ground covers. In addition, I try to maintain an active technology transfer program that includes serving as a Web-based black walnut expert for several organizations and regularly preparing materials for several newsletters.
My future field research will concentrate on evaluating physiological response of hardwood seedlings and ground covers to shade or flooding. We recently renovated a shade tolerance laboratory in which plants are grown under 20 to 100 percent of full sun. In this facility, plants are grown in potting medium amended with slow-release fertilizer and regularly irrigated so that only the light regime affects phenology and productivity. We continue to make design changes in the flood tolerance laboratory installed within a natural floodplain to evaluate effects of flooding on hardwood seedlings. This field facility allows us to control duration, flow, and time of flooding and, to a lesser extent, flooding depth.
Why This Research is Important
The ground cover, especially in hardwood plantings, can substantially alter tree establishment, growth, and productivity. Based on past research, our best cover and nurse crops have been with introduced forage legumes and woody shrubs, several of which are now considered invasive species. My research is trying to identify native ground covers that are easy to establish and maintain, environmentally friendly, and compete minimally with hardwood seedlings and saplings.
- Washington University (St. Louis), Ph.D. Plant Physiology, 1975
- South Dakota State University, B.S. Biology and Botany, 1969
- Society of American Foresters, Member (2009 - Current)
Participate at the state level with the Missouri Society of American Foresters
- Missouri Nut Growers Association, Current Vice President (1999 - Current)
Served on the Board of Directors since 2000 as MNGA Newsletter editor and now as President-elect.
- Northern Nut Growers Association, Advisory Panels (1980 - Current)
Serve on the black walnut expert panel as shown on their website
- Walnut Council, Current Vice President (1979 - Current)
Served on the Board of Directors since 1980 as either Federal Representative, Walnut Council Bulletin editor, Vice-President, President, or Chair of Education Committee. Have also serve as co-chair of program for several annual meetings. Co-editor for proceedings from three walnut research symposia.
Awards & Recognition
- Northern Research Station Multicultural Achievement Award, 2012
Annually given by the Northern Research Station Civil Rights and Diversity Program for their demonstrated contributions to the station's civil rights and diversity program.
- North Central Research Station Technology Transfer Award, 2000
Annually presented to an individual or group with outstanding accomplishments in technolgy transfer and given for participation in identifying authors, edting, compiling, and publishing of Knowledge for the Future of Black Walnut as a walnut grower guide
- Black Walnut Achievement Award, 1988
Annually presented by the Walnut Council (International) to person or group with outstanding achievement in the areas of walnut research or technology transfer and service to the organization.
Featured Publications & Products
- Van Sambeek, Jerry; Juzwik, Jenny. 2010. What's killing my walnuts -- how to find help.
- Van Sambeek, J.W. 2009. Annotated black walnut literature.
- Walsh, Michael P.; Van Sambeek, J.W.; Coggeshall, Mark V. 2008. Variation in flood tolerance of container-grown seedlings of swamp white oak, bur oak, and white oak.
Publications & Products
- Warmund, Michele R.; Van Sambeek, J.W. 2014. Ambered kernels in stenospermocarpic fruit of eastern black walnut.
- Warmund, Michele; Van Sambeek, Jerry. 2014. Thousand cankers disease: Geosmithia morbida spores isolated from a weevil.
- Van Sambeek, J.W.; Jackson, Elizabeth A.; Coggeshall, Mark V.; Thomas, Andrew L.; Michler, Charles H. eds. 2013. Managing fine hardwoods after a half century of research: Proceedings of the Seventh Walnut Council Research Symposium.
- Ponder, Felix, Jr.; Van Sambeek, J.W. 2013. Nine-year performance of four hardwoods on a harvested site with and without fertilizer tree shelters, and weed mats in southern Illinois.
- Ponder, Felix, Jr..; Rutledge, Steve; Van Sambeek, J.W. 2013. Nut production in response to thinning and fertilization for planted walnut.
- Van Sambeek, J.W.; Reed, Sharon. 2013. Thousand cankers disease -- What have we learned?.
- Van Sambeek, J.W.; Navarrete-Tindall, Nadia E. 2013. Using biologically-fixed nitrogen by native plants to enhance growth of hardwood saplings.
- Kabrick, John M.; Dey, Daniel C.; Van Sambeek, J.W.; Coggeshall, Mark V.; Jacobs, Douglass F. 2012. Quantifying flooding effects on hardwood seedling survival and growth for bottomland restoration.
- Warmund, Michele; Enderton, Darin J.; Van Sambeek, J.W. 2010. Bur and nut production on three chestnut cultivars.
- Van Sambeek, J.W. 2010. Database for estimating tree responses of walnut and other hardwoods to ground cover management practices.
- Navarrete-Tindall, Nadia E.; Van Sambeek, J.W. 2010. Evaluating poverty grass (Danthonia spicata) for golf courses in the Midwest.
- Walsh, Michael P.; Van Sambeck, Jerry ; Coggeshall, Mark; Gwaze, David. 2009.
Flood tolerance of oak seedlings from bottomland and upland sites.
- Reid, William; Coggeshall, Mark; Garrett, H.E.; Van Sambeek, Jerry. 2009. Growing black walnut for nut production.
- Dey, Daniel C.; Van Sambeek, J.W.; Ponder, Felix, Jr.; Kabrick, John M. 2008. Afforesting oaks in bottomlands.
- Coggeshall, Mark V.; Van Sambeek, J.W.; Garrett, H.E. 2008. Grafting influences on early acorn production in swamp white oak (Quercus bicolor Wild.).
- Van Sambeek, J.W.; Navarrete-Tindall, Nadia E.; Hunt, Kenneth L. 2008. Growth and foliar nitrogen concentrations of interplanted native woody legumes and pecan.
- Van Sambeek, J. W. 2008. Plantation establishment: site preparation and tree planting methods.
- Coggeshall, Mark V.; Van Sambeek, J.W. 2008. The use of relative growth rates to assess flood tolerance in oak seedlings.
- Van Sambeek, J.W.; Preece, J.E. 2007. In vitro propagation of Fraxinus species.
- Van Sambeek, J. W. 2007. Annotated black walnut literature.
- Navarrete-Tindall, Nadia E.; Fresenburg, Brad; Van Sambeek, J.W. 2007. Evaluating poverty grass (Danthonia spicata L.) for use in tees, fairways, or rough areas in golf courses in the midwest.
- Van Sambeek, J.W.; Navarrete-Tindall, N.E.; Garrett, H.E.; Lin, C.-H.; McGraw, R.L.; Wallace, D.C. 2007. Ranking the shade tolerance of forty-five candidate groundcovers for agroforestry plantings.
- Van Sambeek, J. W. 2006. Annotated black walnut literature.
- Navarrete-Tindall, Nadia E.; Van Sambeek, J.W.; Pierce, R.A. 2005. Cluster fescue (Festuca paradoxa Desv.): A multipurpose native cool-season grass.
- Van Sambeek, J. W. 2005. Evaluating the effectiveness of ground cover management in oak plantings and stands.
- Coggeshall, Mark V.; Van Sambeek, J. W.; Schlarbaum, Scott E. 2005. Flood tolerance evaluation of bottomland oaks in a multi-channel field laboratory.
- Weigel, D.R.; Van Sambeek, J.W.; Michler, C.H., eds. 2005. Ninth workshop on seedling physiology and growth problems in oak plantings (abstracts).
- Kabrick, John M.; Dey, Daniel C.; Van Sambeek, J. W.; Wallendorf, Michael; Gold, Michael A. 2005. Soil properties and growth of swamp white oak and pin oak on bedded soils in the lower Missouri River floodplain.
- Michler, C. H.; Pijut, P.M.; Van Sambeek, J.; Coggeshall, M.; Seifert, J.; Woeste, K.; Overton, R.; Ponder, F., Jr., eds. 2004. Black walnut in a new century, proceedings of the 6th Walnut Council research symposium; 2004 July 25-28; Lafayette, IN..
- Van Sambeek, J.W.; Garrett, H.E. 2004. Ground cover management in walnut and other hardwood plantings.
- Kirk, Steven D.; Starbuck, Chris J.; Van Sambeek, J.W. 2004. Missouri gravel bed and a pot-in-pot system superior to white polyethylene and foam for overwintering Syringa pubescens subsp patula Liners©.
- Van Sambeek, J. W.; Xi, Sheng-Ke; Gustafson, William A.; Coggeshall, Mark V. 2004. Performance of black walnut in the Yellow River watershed of the People's Republic of China.
- Van Sambeek, J.W.; Dawson, Jeffrey O.; Ponder, Felix Jr; Loewenstein, Edward F.; Fralish, James S. 2003. 13th Central Hardwoods Forest Conference.
- Sharma, Jyotsna; Zettler, Lawrence W.; Van Sambeek, J. W. 2003. A Survey of Mycobionts of Federally Threatened.
- Navarrete-Tindall, Nadia E.; Van Sambeek, J. W.; Kirk, Steven D.; McGraw, Robert L. 2003. Adaptation of four Amorpha shrubs to four light levels.
- Coggeshall, Mark V.; Van Sambeek, J. W. 2003. Designing and testing a subirrigation system for rooting hardwood cuttings.
- Van Sambeek, J. W.; Preece, John E.; Coggeshall, Mark V. 2003. Forcing Epicormic Sprouts on Branch Segments of Adult Hardwoods for Softwood Cuttings.
- Carlisle, Jonathan D.; Geyer, Wayne A.; Van Sambeek, J. W. 2003. Increasing amounts of chemical weed control increase growth of white ash, white oak, and black walnut saplings in a tall fescue sod.
- Van Sambeek, J. W. 2003. Legume ground covers alter defoliation response of black walnut saplings to drought and anthracnose.
- Van Sambeek, J. W.; Xi, Sheng-Ke; Gustafson, William A.; Coggeshall, Mark V. 2003. Performance of black walnut from the central hardwood region in China's Yellow River watershed.
- Ladyman, K. P.; Kerley, M. S.; Kallenbach, R. L.; Garrett, H. E.; Van Sambeek, J. W.; Navarrete-Tindall, N. E. 2003. Quality and Quantity Evaluations of Shade Grown Forages.
- Navarrete-Tindall, Nadia; Mechlin, Larry; Van Sambeek, J. W. 2003. Shade Tolerance of Festuca paradoxa Desv., a Cool-Season Grass Native to North America.
- Cheng, Zhanqi; Anderson, Stephen H.; Gantzer, Clark J.; Van Sambeek, J. W. 2003. Soil structure characterized using computed tomographic images.
- Van Sambeek, J. W.; Ostry, Michael E.; Zaczek, James J. 2003. Survival and growth of deep-planted, in-leaf grafts in a germplasm repository of canker-resistant butternut.
- Van Sambeek , J. W.; Preece, John E.; Navarrete-Tindall, Nadia E. 2002. Comparative in Vitro Culture of White And Green Ash From Seed to Plantlet Production.
- Coggeshall, Mark V.; Van Sambeek, J. W. 2002. Development of a Subirrigation System with Potential for Hardwood Tree Propagation.
- Preece, John E.; Van Sambeek, J. W.; Henry, Paul H.; Zaczek, James. 2002. Forcing the Tissue.
- Zaczek, James J.; Groninger, John W.; Van Sambeek, J. W. 2002. Stand Dynamics in an Old-Growth Hardwood Forest in Southern Illinois, USA.
- Sharma, Jyotsna; Van Sambeek, J. W.; Starbuck, Christopher J. 2002. Western Pairie Fringed Orchid: Its Status, Ecology, and in Vitro Propagation.
- Zaczek, James J.; Groninger, John W.; Van Sambeek, J.W. 1999. Long-term changes in tree composition in a mesic old-growth upland forest in southern Illinois.
- Jones, James E.; Mueller, Rita; Van Sambeek, J.W. 1998. Nut production handbook for Eastern black walnut.
- Van Sambeek, J. W.; Kobe, Jane M.; Fralish, James S. 1997. Interference with shoot growth and flowering of dittany (Cunila origanoides (L.) Britton) by hardwood leachates.
- Van Sambeek, J.W. 1997. Knowledge for the future of black walnut; proceedings of the 5th black walnut symposium; 1996 July 28-31; Springfield, MO..
- Van Sambeek, J. W.; Preece, John E.; Navarrete, Nadia E.; Rink, George. 1996. Physiological and genotypic responses of central hardwood species to allelochemicals, other stresses, and their interactions.
- McBride, F. D.; Van Sambeek, J. W. 1995. Black walnut response to subsoiling, irrigation, and vegetation management on a site with a shallow fragipan.
- Van Sambeek, J. W.; Kai, D. Abugarshall; Shenaut, David B. 1995. Chemical release of pole-sized trees in a central hardwood clearcut.
- Van Sambeek, J. W.; Preece, John E.; Huetteman, Carl A.; Roth, Paul L. 1995. Use of plastic films for weed control during field establishment of micropropagated hardwoods.
- Chen, Peter Y. S.; Bodkin, Robert E.; Van Sambeek, J. W. 1995. Variation in pin knot frequency in black walnut lumber cut from a small provenance/progeny test.
- Thompson, Janette R.; Schultz, Richard C.; Van Sambeek, J.W. 1993. Fifth workshop on seedling physiology and growth problems in oak plantings (abstracts)..
- Dawson, J. O.; Van Sambeek, J. W. 1993. Interplanting woody nurse crops promotes differential growth of black walnut saplings.
- Van Sambeek, J.W.; McBride, F.D. 1991. Grass control improves early growth of black walnut more than either deep ripping or irrigation.
- Van Sambeek, J.W.; Hanover, J.W.; Williams, R.D. 1991. Planting stock type x genotype interactions affect early outplanting performance of black walnut seedlings.
- Van Sambeek, J.W.; Larson, Merlyn M. 1990. Fourth workshop on seedling physiology and growth problems in oak plantings (abstracts); 1989 March 1-2; Columbus, OH..
- Van Sambeek, J.W.; Williams, Robert D. 1989. Seeding and Planting Hardwoods.
- Van Sambeek, J. W.; Williams, Robert D. 1989. Seeding and planting hardwoods.
- Van Sambeek, J. W. 1988. Direct Seeding.
- Van Sambeek, J. W. 1988. Grafting.
- Van Sambeek, J. W. 1988. Ground Cover Management.
- Van Sambeek, J. W. 1988. Growing Containerized Seedlings.
- Van Sambeek, J. W. 1988. Interplanting.
- Van Sambeek, J. W. 1988. Nut Production.
- Van Sambeek, J. W. 1988. Planting Seedlings.
- Weber, Barbara C.; Van Sambeek, J. W. 1988. Preventing Animal Damage.
- Van Sambeek, J. W. 1988. Record Keeping.
- Van Sambeek, J. W.; Schlesinger, Richard C. 1988. Revitalizing Stagnating Stands.
- Van Sambeek, J.W. 1988. Site-improving intercrops for black walnut.
- Van Sambeek, J. W.; Schlesinger, Richard C. 1988. Twig and Stem Borers.
- Rink, George; Van Sambeek, J. W. 1987. Seedling-sapling growth variation in a southern Illinios black walnut provenance/progeny test.
- Rink, George; Van Sambeek, J.W. 1987. Variation among four white ash families in response to competition and allelopathy.
- Van Sambeek, J.W.; Ponder, Felix Jr.; Rietveld, W.J. 1986. Legumes increase growth and alter foliar nutrient levels of black walnut saplings.
- Rink, George; Van Sambeek, J.W. 1985. Variation among black walnut seedling families in resistance to competition and allelopathy.
- Van Sambeek, J. W.; Rink, George. 1981. Physiology and silviculture of black walnut for combined timber and nut production.