Research
Mark Widrlechner
General Information
Dr. Widrlechner has served at the Horticulturist for the USDA-ARS at the North Central Regional Plant Introduction Station since 1983. He also serves as a member of the faculties of the Departments of Horticulture and Agronomy at ISU. He curates ornamental and aromatic germplasm collections held at the Station, provides guidance to the Station's curatorial team, and coordinates the evaluation of new woody landscape plants conducted by the NC-7 Regional Ornamental Plant Trials, a long-term, multi-site program to evaluate promising new woody plants under landscape conditions, focusing on conditions in the North Central US.
He has broad research interests related to plant adaptation, systematics, and the conservation and management of plant conservation.
Selected Publications
- Graves, William R., Mark A. Kroggel, and Mark P. Widrlechner. 2002. Photosynthesis and shoot health of five birch and four alder taxa after drought and flooding. Journal of Environmental Horticulture 20:36-40.
- Widrlechner, Mark P. and Jeffery K. Iles. 2002. A geographic assessment of the risk of naturalization of non-native woody plants in Iowa. Journal of Environmental Horticulture 20:47-56.
- Widrlechner, Mark P. and Kathleen A. McKeown. 2002. Assembling and characterizing a comprehensive Echinacea germplasm collection. pp. 506-508. In: Trends in New Crops and New Uses. J. Janick and A. Whipkey (eds.) ASHS Press, Alexandria, VA. .
- Lebeda A. and M.P. Widrlechner. 2003. A set of Cucurbitaceae taxa for differentiation of Pseudoperonospora cubensis pathotypes. Journal of Plant Diseases and Protection 110:337-349.
- Widrlechner, Mark P. and Lisa A. Burke. 2003. Analysis of germplasm distribution patterns for collections held at the North Central Regional Plant Introduction Station, Ames, Iowa, USA. Genetic Resources & Crop Evolultion 50:329-337.
- Lebeda, A., and M.P. Widrlechner. 2004. Response of wild and weedy Cucurbita L. to pathotypes of Pseudoperonospora cubensis (Berk. & Curt.) Rostov. (cucurbit downy mildew). Advances in Downy Mildew Research 2:203-210.
- Santacruz-Varela, A., M.P. Widrlechner, K.E. Ziegler, R.J. Salvador, M.J. Millard, and P.K. Bretting. 2004. Phylogenetic relationships among North American popcorns and their evolutionary links to Mexican and South American popcorns. Crop Science 44:1456-1467.
- Tay, David, Mark P. Widrlechner, and James L. Corfield. 2004. Establishment of a new genebank for herbaceous ornamental plants. FAO/IPRGI Plant Genetic Resources Newsletter 137:26-33.
- Towill, L.E., and M. Widrlechner. 2004. Cryopreservation of Salix species using sections from winter vegetative scions. CryoLetters 25:71-80.
- Widrlechner, Mark P., Janette R. Thompson, Jeffery K. Iles, and Philip M. Dixon. 2004. Models for predicting the risk of naturalization of non-native woody plants in Iowa. Journal of Environmental Horticulture 22:23-31.
- Widrlechner, Mark P. 2005. Germplasm acquistion from conception to products. (Introduction to Workshop Proceedings). HortScience 40:296.
- Qu, Luping, Xiping Wang, Ying Chen, Richard Scalzo, Mark P. Widrlechner, Jeanine M. Davis, and James F. Hancock. 2005. Commercial seed lots exhibit reduced seed dormancy in comparison to wild seed lots of Echinacea purpurea. HortScience 40:1843-1845.
Proceedings and Journal Publications 2000-2005
- Dosmann, Michael S., Jeffery K. Iles, and Mark P. Widrlechner. 2000. Stratification and light improve germination of katsura tree seed. HortTechnology 10: 571-573.
- Fuentes-Granados, Roger G., Mark P. Widrlechner, and Lester A. Wilson. 2000. Inheritance studies of aromatic compounds in Agastache foeniculum (Pursh) Kuntze. J. Essential Oil Res. 12: 581-594.
- Ovrom, Paul and Mark Widrlechner. 2000. USDA-ARS NC-7 Regional Woody Ornamental Trials. Transcript of poster published in: Combined Proceedings of the International Plant Propagators' Society 50: 429.
- Widrlechner, Mark P. and David A. Kovach. 2000. Dormancy-breaking protocols for Cuphea seed. Seed Science & Technology 28: 11-27.
- Abel, C.A., L.M. Pollak, W. Salhuana, M.P. Widrlechner, and R.L. Wilson. 2001. Registration of GEMS-0001 maize germplasm resistant to leaf blade, leaf sheath, and collar feeding by European Corn Borer. Crop Science 41: 1651-1652.
- Norris, William R., Deborah Q. Lewis, Mark P. Widrlechner, Jimmie D. Thompson, and Richard O. Pope. 2001. Lessons from an inventory of the Ames, Iowa flora (1859-2000). Journal of the Iowa Academy of Science 108: 34-63.
- Norris, William R., Mark P. Widrlechner, Deborah Q. Lewis, Jimmie D. Thompson, and Richard O. Pope. 2001. More than a century of change in the Ames, Iowa flora (1859-2000). Journal of the Iowa Academy of Science 108: 124-141.
- Widrlechner, Mark P. 2001. The role of environmental analogs in identifying potentially invasive woody plants in Iowa. Journal of the Iowa Academy of Science 108: 158-165.
- Widrlechner, Mark P., Robert E. Schutzki, Vasily Y. Yukhnovsky, and Victor V. Sviatetsky. 2001. Collecting landscape trees and shrubs in Ukraine for the evaluation of aesthetic quality and adaptation in the north central United States. FAO/IPGRI Plant Genetic Resources Newsletter 126: 12-16.
- Widrlechner, Mark P. and Warren H. Wagner, Jr. "1998" (published 2001). Occurrence of european dewberry, Rubus caesius (Rosaceae), naturalized in Iowa and Michigan. Michigan Botanist 37: 107-112.
- Graves, William R., Mark A. Kroggel, and Mark P. Widrlechner. 2002. Photosynthesis and shoot health of five birch and four alder taxa after drought and flooding. Journal of Environmental Horticulture 20: 36-40.
- Widrlechner, Mark P. and Jeffery K. Iles. 2002. A geographic assessment of the risk of naturalization of non-native woody plants in Iowa. Journal of Environmental Horticulture 20: 47-56.
- Widrlechner, Mark P. and Kathleen A. McKeown. 2002. Assembling and characterizing a comprehensive Echinacea germplasm collection. pp. 506-508. Trends in New Crops and New Uses. Proceedings of the 5th National Symposium on New Crops and New Uses: Strength in Diversity, Atlanta, GA, 10-13 November 2001. J. Janick and A. Whipkey (eds.) ASHS Press, Alexandria, VA.
- Lebeda A. and M.P. Widrlechner. 2003. A set of Cucurbitaceae taxa for differentiation of Pseudoperonospora cubensis pathotypes. Journal of Plant Diseases and Protection 110: 337-349.
- Widrlechner, Mark P. and Lisa A. Burke. 2003. Analysis of germplasm distribution patterns for collections held at the North Central Regional Plant Introduction Station, Ames, Iowa, USA. Genetic Resources & Crop Evolution 50:329-337.
- Yukhnovskiy, V. Yu., V.V. Svyatetskiy, M.P. Widrlechner, and R.E. Schutzki. 2003. Biodiversity of the forest component of the forest-agricultural landscape. (Біорізноманіття лісової компоненти лісоаграрного ландшафту // Аграрна наука і освіта.) Agrarna Nauka i Osvita UANNP "Feniks" 4(1-2): 70-75. (In Ukrainian).
- Lebeda, A., and M.P. Widrlechner. 2004. Response of wild and weedy Cucurbita L. to pathotypes of Pseudoperonospora cubensis (Berk. & Curt.) Rostov. (cucurbit downy mildew). Advances in Downy Mildew Research 2: 203-210.
- Santacruz-Varela, A., M.P. Widrlechner, K.E. Ziegler, R.J. Salvador, M.J. Millard, and P.K. Bretting. 2004. Phylogenetic relationships among North American popcorns and their evolutionary links to Mexican and South American popcorns. Crop Science 44: 1456-1467.
- Tay, David, Mark P. Widrlechner, and James L. Corfield. 2004. Establishment of a new genebank for herbaceous ornamental plants. FAO/IPRGI Plant Genetic Resources Newsletter 137: 26-33.
- Towill, L.E., and M. Widrlechner. 2004. Cryopreservation of Salix species using sections from winter vegetative scions. CryoLetters 25: 71-80.
- Widrlechner, Mark P. 2004. Insights into woody plant adaptation and practical applications. Presented to the 13th METRIA Conference, 18 June, Lisle, IL, and presented in expanded form as a seminar to the ISU Horticulture Department, 6 December. METRIA Proceedings Volume 13, published on the Internet at: http://www.ces.ncsu.edu/fletcher/program...index.html
- Widrlechner, Mark P., Janette R. Thompson, Jeffery K. Iles, and Philip M. Dixon. 2004. Models for predicting the risk of naturalization of non-native woody plants in Iowa. Presented to ISU Plant Health & Protection 498 on 9 April. Journal of Environmental Horticulture 22: 23-31.
- Widrlechner, Mark P. 2005. Germplasm acquistion from conception to products. (Introduction to Workshop Proceedings). HortScience 40: 296.
- Qu, Luping, Xiping Wang, Ying Chen, Richard Scalzo, Mark P. Widrlechner, Jeanine M. Davis, and James F. Hancock. 2005. Commercial seed lots exhibit reduced seed dormancy in comparison to wild seed lots of Echinacea purpurea. HortScience 40: 1843-1845.
