Students

CURRENT STUDENTS

Donnelly, Jennifer
•Ph.D., Interdepartmental Bioinformatics & Computational Biology and Ecology & Evolutionary Biology; Iowa St. Univ.; 2001-present
•Project: Relationship between Setaria spp. seed hull morphology, function and phylogeny

Gilbert, James
•Honors Program, Environmental Science; Iowa State Univ.; 2002-2003
•Freshman Honors Mentor Program Project: Salt tolerance in the weed foxtails (Setaria spp.)

Jovaag, Kari
•Ph.D.; Interdepartmental Ecology & Evolutionary Biology and Statitics; Iowa St. Univ.; 1996-present
•Dekker, J., B. Atchison, and K. Jovaag. 2003. Setaria spp. seed pool formation and initial assembly in agro-communities. Aspects of Applied Biology 69: in review.

PAST STUDENTS

Akey, William
•Ph.D., Crop Production and Physiology, Agronomy; Iowa St. Univ.; 1989
•Thesis: The role of competition for light in interference between velvetleaf (Abutilon theophrasti) and soybean (Glycine max)
•Akey, W. C., T. W. Jurik and J. Dekker.  l991.  A replacement series evaluation of competition between velvetleaf (Abutilon theophrasti) and soybean (Glycine max). Weed Research 31:63-72.
•Akey, W. C., T. W. Jurik and J. Dekker.  l990.  Competition for light between velvetleaf (Abutilon theophrasti) and soybean (Glycine max). Weed Research 30:403-411.  

Atchison, Bradley G.
•M.S., Interdepartmental Ecology and Evolutionary Biology; 2001, Iowa St. Univ.
•Thesis: Relationship between foxtail (Setaria spp.) primary dormancy at seed abscission and subsequent seedling emergence
•Dekker, J., J. Lathrop, B. Atchison, and D. Todey. 2001. The weedy Setaria spp. phenotype: How environment and seeds interact from embryogenesis through germination.  Proceedings of the Brighton Crop Protection Conference-Weeds 2001:65-74.  
•Dekker, J., B. Atchison, and K. Jovaag. 2003. Setaria spp. seed pool formation and initial assembly in agro-communities. Aspects of Applied Biology 69: in review.

Blackshaw, Robert
•Ph.D., Crop Science, Univ. of Guelph; 1986
•Thesis: The use of a tri-specific replacement series to measure interference among Sinapis arvensis, Chenopodium album, and  Brassica napus
•Blackshaw, R. E. and J. H. Dekker. l984. Experimental methodology for quantitative measurement of light interference amongst three species. NCWCC Proceedings 39:80-8l. (First place, NCWCC Graduate Student Paper Contest.)  
•Blackshaw, R. E., G. Walker and J. Dekker.  1989.  Interference among Sinapis arvensis, Chenopodium album and Brassica napus. II. Interference for light.  Phytoprotection 70:7-l4.
•Blackshaw, R. E. and J. Dekker.  1988.  Interference among Sinapis arvensis,  Chenopodium album and Brassica napus.  I.  Yield response and interference for nutrients and water.  Phytoprotection 69:l05-l20.  
•Walker, G. K., R. E. Blackshaw and J. Dekker. l988. Leaf area and competition for light between plant species using direct sunlight transmission.  Weed Technology 2:l59-l65.  
•Blackshaw, R. E., G. W. Anderson and J. Dekker.  l987.  Interference of Sinapis arvensis L. and Chenopodium album L. in spring rapeseed (Brassica napus L.). Weed Research 27:207-213.  
•Current:  WSSA Outstanding Young Weed Scientist Award, 1995; Editor, Weed Science, 2002-present.

Burmester, Ronald G.
•B.S., Iowa St. Univ.
•Dekker, J.H. and R.G. Burmester. 1993. Pleiotropy in triazine resistant Brassica napus:  Differential stomatal and leaf responses to the environment. In: Research in photosynthesis, N. Murata (Ed.), Vol. IV:631-634. Kluwer Academic Publishers, Dordrecht, The Netherlands.
•Dekker, J.H. and R.G. Burmester. 1992. Pleiotropy in triazine resistant Brassica napus:  Ontogenetic and diurnal influences on photosynthesis. Plant Physiology 100:2052-2058.  
•Dekker, J., R. Burmester and J. Wendel.  l991.  Mutant weeds of Iowa:  S-triazine resistant Polygonum pensylvanicum L.  Weed Technology 5:211-213  
•Dekker, J. and R. G. Burmester.  l990.  Differential pleiotropy in a psbA gene mutant of Brassica napus implies altered temporal photosynthesis and thermal tolerance. Zeitschrift fur Naturforschung 45c:474-477.
•Dekker, J. and R. G. Burmester.  l990.  Differential diurnal photosynthetic function in a psbA plastid gene chronomutant of Brassica napus L.  In: Chronobiology:  Its role in clinical medicine, general biology and agriculture; Pt. B., Cellular and Molecular Mechanisms. Eds. D. Hayes, J. E. Pauly and R. J. Reiter.  Pp. 243-25l.  Wiley-Liss, N.Y., N.Y.
•Dekker, J. and R. G. Burmester.  l989.  Differential diurnal carbon exchange and photoinhibition in a psbA plastid gene chronomutant of Brassica napus.  In: Current Research in Photosynthesis, M. Baltscheffsky (Ed.), Kluwer Academic Publishers, Dordrecht, The Netherlands, Vol. IV(l6):263-266.
•Dekker, J. and R. G. Burmester.  l989. Differential diurnal photosynthesis in a psbA gene chronomutant of Brassica napus. Physiologia Plantarum 76:l82.
•Dekker, J. and R. Burmester.  l989.  Mutant weeds of Iowa:  s-triazine resistant plastids in Chenopodium album L.  Journal of the Iowa Academy of Science 96:6l-64.
•Dekker, J. and R. Burmester.  l989.  Differential diurnal photosynthetic function and regulation in a psbA plastid gene chronomutant of Brassica napus.  Chronobiologica l6:l27.  
•Dekker, J. and R. Burmester.  l988.  Fluorometric determination of in vivo p-halohydroxybenzonitrile detoxification kinetics in Zea mays. Analytical Letters 2l(ll):2077-2089.  
•Dekker, J., R. Burmester, K. C. Chi and L. Jensen. l987. Mutant Weeds of Iowa: s-triazine resistant plasids in Kochia scoparia. Iowa Journal of Research 62:l83-l88.  

Cooper, Angela
•B.S., Iowa St. Univ.
•Undergraduate Honors Research Assistantship Program
•Project:

DeVries, Mindy
•B.S., Agronomy, Iowa St. Univ.
•Project:
•Current: M.S. Student, Agronomy, Iowa St. Univ.

Dionigi, Chris
•Ph.D., Crop Production and Physiology, Agronomy; Iowa St. Univ.; 1989
•Thesis: Characterization of the joint effects of tridiphane and paraquat on soybeans
•Dionigi, C. P. and J. H. Dekker.  l990.  The effects of tridiphane on the growth and structure of soybean leaf tissue.  Pesticide Biochemistry and Physiology 37:287-292.
•Current: Assistant Director for National Policy and Programs, National Invasive Species Council (NISC), U.S. Department of the Interior  

Haar, Milt
•Ph.D., Interdepartmental Plant Physiology; Iowa St. Univ.; 1998
•Haar, M.J. and J.H. Dekker. 1999. Influence of tiller and panicle development on giant foxtail (Setaria faberi) seed dormancy. Weed Science Society of America Proceedings.
•Haar, M.J. and J.H. Dekker. 1996. Correlation of giant foxtail (Setaria faberi), green foxtail (S. viridis) and yellow foxtail (S. glauca) seed production with panicle length, branching and tillering. North Central Weed Science Society Proceedings. No. 50.
•Haar, M.J. and J.H. Dekker. 1995. Correlation of seed number and panicle length for primary, secondary and tertiary panicles of giant, green and yellow foxtail. Iowa Academy of Science Annual Meeting, Simpson College, Indianola, IA.
•Haar, M.J. and J.H. Dekker, 1994. Somatic polymorphism in Setaria faberi: Germination-Dormancy states at abscission. 1st International Symposium on Plant Dormancy. Abstract no. 91.
•Thesis: Characterization of foxtail (Setaria spp.) seed production and giant foxtail (S. faberi) seed dormancy at abscission
•Current:  Assistant professor, University of Minnesota, Department of Agronomy and Plant Genetics, Lamberton; and Southwest Minnesota State University

Harker, Neil
•Ph.D., Crop Science, Univ. of Guelph; 1987
•Thesis: Herbicide and sucrose translocation patterns in quackgrass (Agropyron repens)
•Harker, K. N. and J. H. Dekker. l984. The effect of temperature on the translocation of sucrose, glyphosate and several graminicides in quackgrass [Agropyron repens (L.) Beauv.]  NCWCC 39:94. (First Place, NCWCC Graduate Student Paper Contest).  
•Harker, K. N. and J. Dekker.  l988.  Temperature effects on translocation patterns of several herbicides within quackgrass (Agropyron repens).  Weed Science 36:545-552.
•Harker, K. N. and J. Dekker.  l988.  Effects of phenology on translocation patterns of several herbicides within quackgrass (Agropyron repens).  Weed Science 36:463-472.  
•Dekker, J. H. and K. N. Harker.  l985.  Comparative efficacy of several graminicides in controlling Elymus repens.  Proc. l985 British Crop Prot. Conf., Brighton: Weeds 2:47l-478.  
•Current:  Weed Management Research, Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada

Loebach, Edward
•B.S., Iowa St. Univ.
•Freshman Honors Mentor Program Project:

Luschei, Edward
•Ph.D. candidate, Ecology & Evolutionary Biology (completed studies at Montana St. U.)
•Luschei, E.C., D.D. Buhler, and J. Dekker. 1998. Effect of separating giant foxtail (Setaria faberi) seeds from soil using potassium carbonate and centrifugation on viability and germination. Weed Science 46:545-548.
•Current:  Assistant Professor, Weed Ecology, Agronomy Dept., Univ. Wisconsin-Madison

Menkveld, J. William
•M.S.; Crop Science; Univ. of Guelph, 1990
•Thesis: Factors affecting degradation rates of thiocarbamate herbicides in Ontario soils
•Menkveld, J. W. and J. H. Dekker. l988. Persistence of EPTC+ and Butylate+ in Butylate+ acclimatised Soils. Phytoprotection 69:23-30.  

McCormick, William
•B.S., Iowa St. Univ.
•Project: 
•McCormick, B. and J. Dekker. l986. Cover crop interference in no-till corn and soybean production.  NCWCC Proceedings 41:85.  

Omelian, Joseph
•B.S., Univ. of Guelph
•Project:
•Omelian, J. and J. H. Dekker. l982. Effect of winter rye and wheat cover crops on pigweed and corn growth and development. NCWCC Proceedings 37:44.  

Reschly, Brent
•B.S., Iowa St. Univ.
•Undergraduate Honors Research Assistantship Program
•Project:
•Reschly, J.H. Dekker, and D.E. Stoltenberg. 1996. Comparison of seed germinability between acetyl coenzyme A carboxylase inhibitor resistant and susceptible Setaria faberi. Agronomy Abstracts:6.  
•Current:  US Seeds Quality Assurance Work Process Leader, Mycogen Seeds, Marshalltown, Iowa. 

Sikkema, Peter H.
•M.S., Crop Science, Univ. of Guelph; 1982
•Thesis: Determination of critical quackgrass (Agropyron repens) induced stress periods in soybeans (Glycine max) with infrared thermometry
•Sikkema, P. H. and J. H. Dekker. l987. Use of infrared thermometry in determining critical stress periods induced by quackgrass (Agropyron repens) in soybeans (Glycine max). Weed Science 35:784-79l.  
•Sikkema, P. H. and J. H. Dekker. l982. Monitoring of critical quackgrass induced stress periods in soybeans with infrared thermometry.  NCWCC Proceedings 37:53.  (Second place, NCWCC Graduate Student Paper contest.).  

Tranel, Patrick
•B.S., Iowa St. Univ.
•Undergraduate Honors Research Assistantship Program
•Tranel, P. and J. Dekker. 1992. Inheritance of clomazone resistance in maize seedlings. Maydica 37:137-142.  
•Current:  Assistant Professor, Dept. of Crop Sciences, Univ. of Illinois, Urbana

Tranel, Dean
•B.S., Iowa St. Univ.
•Undergraduate Honors Research Assistantship Program
•Tranel, D., J. Dekker. 2002. Differential seed germinability in triazine-resistant and -susceptible giant foxtail (Setaria faberii). Asian Journal of Plant Sciences 1(4):334-336.  
•Tranel, D.M., and J.H. Dekker. 1996. Differential seed germinability in triazine resistant and susceptible giant foxtail (Setaria faberi). NCWSS Proceedings 51:165.  

Thornhill, Randall G.
•M.S., Interdepartmental Plant Physiology; Iowa St. Univ.; 1997
•Thesis: The effect of temperature and moisture on germination of giant foxtail (Setaria faberi) seeds, caryopses and embryos
•Thornhill, R. and J. Dekker. 1993. Mutant weeds of Iowa:  V. S-triazine resistant Giant Foxtail (Setaria faberii Hermm.). Journal of the Iowa Academy of Science 100:13-14.  

Wang, Rong-Lin
•Ph.D., Interdepartmental Plant Physiology; Iowa St. Univ.; 1994
•Thesis: Weedy adaptation in Setaria spp.: Genetic diversity, population genetic structure and variation in herbicide resistance
•Wang, R.L, J. Wendell and J. Dekker. 1995. Weedy adaptation in Setaria spp.: I. Isozyme analysis of the genetic diversity and population genetic structure in S. viridis.  American Journal of Botany 82(3):308-317.  
•Wang, R.L, J. Wendell and J. Dekker. 1995. Weedy adaptation in Setaria spp.: II. Genetic diversity and population genetic structure in S. glauca, S. geniculata and S. faberii. American Journal of Botany 82(8):1031-1039.
•Wang, R.L. and J. Dekker. 1995. Weedy adaptation in Setaria spp.: III. Variation in herbicide resistance in Setaria spp.  Pesticide Biochemistry and Physiology 51:99-116.  
•Current:  Staff scientist II, Applied Trait Genetics, Syngenta Biotechnology Inc., Research Triangle Park, NC
•Current:  
Stephen Goff, D. Ricke, T. Lan, G. Presting, Ronglin Wang et al., 2002.  A draft Sequence of the Rice Genome (Oryza sativa L. ssp. Japonica).  Science 296:92-100.
Wang, R. L., Adrian Stec, Jody Hey, Lewis Lukens, and John Doebley, 1999.  The limits of selection during maize domestication.  Nature 398: 236-239.

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