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Jennifer W. MacAdam

Associate Professor - Plant Physiology and Forage Production

Area of Study: Agronomy, Crop Science, Plant Science

Employee Type: Faculty

Email: jennifer.macadam@usu.edu

Location: Ag Science 330

Office Phone: 435-797-2364

Fax: 435-797-3376

Cell Phone: 435-770-8019

Mailing Address:
Dept. of Plants, Soils & Climate
4820 Old Main Hill,
Logan Utah 84322-4820

Dr. MacAdam came to Utah State University in 1991, where her current appointment is 70% research, 20% teaching and 10% service. Dr. MacAdam's research interests are (1) the management of seeded, irrigated pastures for grazing-based livestock production, (2) responses of irrigated forages to salinity and drought stress, and (3) the developmental regulation of leaf growth in grasses. She teaches an introduction to plant physiology and plant anatomy that emphasizes hands-on laboratory experiences and employs plants of value to agronomy and horticulture. She has just completed a text for the course, The Structure and Function of Plants, that will be published by Wiley-Blackwell in 2009. Dr. MacAdam is an active member of the American Society of Agronomy and the Crop Science Society of America, serving in 2003 as chair of CSSA Division C-6 (Forage and Grazing Lands) and currently serving as an associate editor of the journals Crop Science and Agronomy Journal.

My Research: Irrigated Legumes for Livestock Production in the Intermountain West

My Class: PSC 3500 - the Structure and Function of Economic Crop Plants

My Book: The Structure and Function of Plants

Education
Ph.D. 1988 Agronomy, University of Missouri-Columbia

M.S. 1984 Agronomy, University of Missouri-Columbia

B.S. 1982 Agronomy, Missouri State University

Professional Experience
Associate Professor, 1997-present, Plant Physiology/Forage Production
Dept. of Plants, Soils, and Climate, Utah State University

Assistant Professor, 1991-1997, Plant Physiology/Forage Production
Dept. of Plants, Soils, and Climate, Utah State University

Postdoctoral Fellow, 1989-1991, Plant Physiology
Dept. of Agronomy, University of Missouri - Columbia

Instructor, Spring Semester, 1990, Crop Physiology course
Dept. of Agronomy, University of Missouri - Columbia

Postdoctoral Fellow, 1988-1989, Ruminant Nutrition Group
Dept. of Animal Sciences, University of Missouri - Columbia

Graduate Research Assistant, 1982-1988, Forage Physiology
Dept. of Agronomy, University of Missouri - Columbia

Refereed Publications - 2001 to present

MacAdam, J.W. 2009. The Structure and Function of Plants. Wiley-Blackwell.
David, E.J., D. Chen, D. DeWald, J. Shope, J. MacAdam and Y. Wu. 2009. Searching for new cell wall protein genes in Arabidopsis. Plant Physiol. Biochem. In press.
Provenza, F.D., J.J. Villalba, J. Haskell, J.W. MacAdam, T.C. Griggs and R.D. Wiedmeier. 2007. The value to herbivores of plant physical and chemical diversity in time and space. Crop Science 47:382-398.
Griggs, T.C., J.W. MacAdam, H.F. Mayland, and J.C. Burns. 2007. Temporal and vertical distribution of nonstructural carbohydrate, fiber, protein, and digestibility levels in orchardgrass swards. Agronomy Journal 99: 755-763.
MacAdam, J. W. and A. L. Barta. 2007. Irrigation and water management, In pp. 379-394 R. F. Barnes, C. J. Nelson, M. Collins and K. J. Moore (ed.) Forages. An Introduction to Grassland Agriculture, Vol II, 6th Ed, Iowa State Press, Ames.
MacAdam, J. W, T. C. Griggs, P. R. Beuselinck, and J. H. Grabber. 2006. Birdsfoot trefoil, a valuable tannin-containing legume for mixed pastures. Online. Forage and Grazinglands. doi:10.1094/FG-2006-0912-01-RV
MacAdam, J.W. and T.C. Griggs. 2006. Performance of birdsfoot trefoil, white clover, and other legume-grass mixtures under irrigation in the Intermountain West U.S.A. Proc. New Zealand Grassland Association 68:555-559.
Griggs, T.C., J.W. MacAdam, H.F. Mayland, and J.C. Burns. 2005. Nonstructural carbohydrate and digestibility patterns in orchardgrass swards during daily defoliation sequences initiated in evening and morning. Crop Science 45: 1295-1304.
MacAdam, J. W., T. C. Griggs and G. J. Mileski. 2005. The interaction of management with botanical composition of irrigated grass-legume pasture mixtures in the Intermountain West USA. p. 357 In O'Mara, F.P., R.J. Wilkins, L. t'Mannete, D.K. Lovett, P.A.M. Rogers and T. Boland (ed) Proceedings of the XX International Grassland Congress, Dublin, Ireland, 26 June-1 July 2005.
MacAdam, J. W. and C. J. Nelson. 2003. Physiology of forage plants, pp. 73-97 In R. F. Barnes, C. J. Nelson, M. Collins and K. J. Moore (ed.) Forages. An Introduction to Grassland Agriculture, Vol. I, 6th Ed., Iowa State Press, Ames.
MacAdam, J. W. and H. F. Mayland. 2003. The relationship of leaf strength to cattle preference in tall fescue cultivars. Agronomy Journal 95: 414-419.
Miller, R., J. MacAdam, and R. Koenig. 2003. Management intensive grazing systems and the environment. Nitrogen and phosphorus leaching. USU Cooperative Extension Service, Electronic Bulletin AG/2003-10.
Mayland, H.F., J.W. MacAdam, G.E. Shewmaker, and N.J. Chatterton. 2003. The diurnal cycling of sugars in grasses impacts strip-graze management plans. Proceedings National Conference on Grazing Lands, 7-10 December 2003, Nashville TN. CD-ROM p. 466-468.
de Souza, I. R. P., V. M. C. Alves, S. N. Parentoni, A. C. Oliveira, F. F. Teixeira, J. W. MacAdam and A. A. C. Purcino. 2002. Change in root apical protein and peroxidase activity in response to aluminum in tolerant and sensitive maize inbred lines. Brazilian Journal of Plant Physiology 14: 219-224.
*Vaughan, L. V., J. W. MacAdam, S. E. Smith and L. M. Dudley. 2002. Root growth and yield of differing alfalfa rooting populations under increasing salinity and zero leaching. Crop Science, 42: 2064-2071.
MacAdam, J. W. and J. H. Grabber. 2002. Relationship of growth cessation with the formation of diferulate cross-links and p-coumaroylated lignins in tall fescue leaf blades. Planta, 215: 785-793.
MacAdam, J. W. and C. J. Nelson. 2002. Secondary cell wall deposition causes radial growth of fiber cells in the maturation zone of elongating tall fescue leaf blades. Annals of Botany, 89: 89-96.
MacAdam, J. W. 2002. Grass and forage legume mixes – what’s hot and what’s not! pp. 79-88 In J.E. Brummer and C.H. Pearson (ed.) Proceedings of the Intermountain Forage Symposium. Colorado State Univ., Tech. Bull. LTB 02-1.
*de Souza, I. R. P. and J. W. MacAdam. 2001. Gibberellic acid and dwarfism effects on the growth dynamics of B73 maize (Zea mays L. ) leaf blades: A transient increase in apoplastic peroxidase activity precedes cessation of cell elongation. Journal of Experimental Botany, 52: 1673-1682.
*Karsten, H. D. and J. W. MacAdam. 2001. Effect of drought on growth, carbohydrates, and soil water use by perennial ryegrass, tall fescue and white clover. Crop Science 41: 156-166.

*Paper resulting from collaboration with a graduate student or post-doctoral fellow.

Regional Research Projects and Committees
WERA-1002 “Managed Grazing Systems for the Intermountain West” 2002 to present, Chair 2003 and 2004
NCCC-31 “Ecophysiological Aspects of Forage Management” 2000-present, Chair 2004
WCC-91 “Improving Stress Resistance of Forages in the Western United States” 2000-2002
NE-177 “Impacts of Structural Change in the Dairy Industry” 10/1/96 to 9/30/01
NE-132 “Environmental and Economic Impacts of Nutrient Flows in Dairy Forage Systems” 10/1/95 to 9/30/00, Chair
1998

Teaching Responsibilities
PLSC 3500
The Structure and Function of Economic Crop Plants, 1998 to present
Undergraduate-level lecture and lab course, 3 semester credits

PSB 2800
Fundamentals of Organic Agriculture (Multiple Instructors)
Section on Crop Production 2007
Undergraduate-level lecture and case-study course, 3 semester credits

PLSC 4320
Forage Production and Pasture Ecology, 1991 to 2001
Undergraduate-level lecture and lab course, 4 quarter credits / 3 semester credits

PLSC 6430
Plant Nutrition (co-instructed with Bruce Bugbee), 1993 and 1997
Graduate-level lecture course, 3 quarter credits

Service on Panels and Boards
Associate Editor, Crop Science, 2007 to present
Technical Editor, Forage and Grazinglands, 2003-2006
Associate Editor, Agronomy Journal, 1995-2001
USDA-NRI Prosperity of Small Farms and Rural Agricultural Communities grant review panel, January 2005
NSF Advisory Panel for Multi-user Biological Equipment and Instrumental Resources (MUE), 2002
USU Women and Gender Research Institute Steering Committee, 2002-2005

Awards
ESCOP-ACOP Leadership Development Class 7, 1997
USU Women and Gender Research Institute Travel Award, $1000, 1995

Membership and Activity in Professional and Honor Societies
American Society of Agronomy
     ASA Fellows Selection Committee, Member 2003-2005
     Forage Management Journal-Feasibility Committee, Member 2002-2003
     Monographs Committee, Member 2001-2004
American Society of Plant Biologists
Botanical Society of America
British Grassland Society
Crop Science Society of America
     Young Crop Scientist Award Committee
          Chair 2006-2007
Member 2004-2006
     Division C-6 Forage and Grazing Lands
Chair 2002-2003
          Chair-Elect 2001-2002
     Gerald O. Mott Scholarship Committee
          Chair 1994
          Member 1991-1993, 1995-1997, 1998-2000
Delta Tau Alpha (undergraduate honor society)
New Zealand Grassland Association
Phi Kappa Phi (graduate honor society)
Sigma Xi (scientific research society)
     Secretary, USU Chapter, 1992-1995
Society for Range Management