Ellen T. Paparozzi

Ellen T. Paparozzi



Ellen T. Paparozzi


B.S., Plant Science, Cook College, Rutgers University, 1976

M.S., Floriculture & Ornamental Horticulture, Cornell University, Ithaca, NY, 1978

Ph.D., Floriculture & Ornamental Horticulture, Cornell University, Ithaca, NY, 1980

Areas of Focus

  • Plant Physiology (plant nutrition) and Anatomy
  • Floriculture and Ornamental Horticulture
  • Plant Physiology and Production Ecology

Research Interests


The purpose of our lab is to offer training to graduate students (and upper division undergraduate students) in research methods that involve the growing of floricultural and ornamental plants, and the execution complex plant nutritional experiments. We will train undergraduate and graduate students in sectioning and embedding plant material for light and fluorescence microscopy.

The laboratory technologist is Liz Conley, M. S. She coordinates all efforts in the laboratory and is responsible for equipment training, lab procedure training and equipment check-out. The lab is located in Rm.384 Plant Sciences and Liz can be be contacted at 2-2850 or via email at mconley2@unl.edu.

Research Focus

Our main research focus is on the broad topic of leaf yellowing and subsequent re-greening of leaves. We are approaching this topic using physiological, anatomical, and molecular biological methods.

Our current project right now involves Swedish ivy (2 species) and its ability to re-green after macronutrient and micronutrient deficiency. We have worked out re-greening timetables; protocols for protein separation by 2-D gel electrophoresis and total carbohydrate analysis also. We also view these symptoms utilizing light, fluorescence, confocal and electron microscopy.

Applied Research - Strawberries in Winter - sustainable horticulture

Research is underway to determine which cultivars of strawberries would grow best in the greenhouse during the winter. In order to do this, we are taking data on number and weight of berries per pot, nutraceutical characteristics and stolon production as well as light and moisture levels. Estimations of start-up costs for a poly greenhouse and costs of production are also part of this project. Collaborators on this project include: Dr. George Meyer, Biological Systems Engineering; Dr. Vicki Schlegel, Food Science; Dr. Erin Blankenship, Statistics; Dr. Paul Read, Horticulture; Associate Professors of Practice David Lambe MBA and Stacy Adams, M. S., and Ms M. Elizabeth Conley, MS, technologist. Please visit our website at agronomy.unl.edu/cea for more information.

Courses Taught


  • Paparozzi, E. T., Chahal, J. K., Dobrev, P., Claassen, E. A., Stroup, W. W., and R. Vankova. 2016. Cytokinin dynamics during the response to nitrogen in two contrasting Plectranthus genotypes. J. Amer. Soc. Hort Sci. 141(3):264-274.
  • Stroup, W. W. and E. T. Paparozzi. 2016. A glimpse of GLMMIX (with a peak at R) for use in horticultural research. Acta Horticulturae 1126 (32):249-268.
  • Kramer, M., Paparozzi, E. T. and W. W. Stroup. 2016. Statistics in a horticultural journal: problems and solutions. J. Amer. Soc. Hort. Sci.141 (5):400-406.
  • Wortmann, C., Mundorf, T., Shapiro, C., Paparozzi, E. T. 2015. Time of day effect on foliar nutrient concentrations in corn and soybean. J. Plant Nutrition 36:2166-2178.
  • Paparozzi, E. T. and R. Pekarek. 2014. Winter production of strawberries: an idea whose time has come.  In Moving the Needle. Accomplishments of the National Sustainable Strawberry Initiative. p. 23-24.
  • Meyer, G. E., Paparozzi, E. T., Adams, S., Voltan, D. S. 2014. Evaluation of a Soilless Media Sensor for Managing Winter-time Greenhouse Strawberry Production on CapMat Systems. ASABE Paper Number 1913441. The American Society of Agricultural and Biological Engineering, St Joseph MI.  pp. 15 pages
  • Adams, S. A. and E. T. Paparozzi. 2014. Constructing a block and fence growing bench for use with a capillary mat irrigation system for greenhouse plant production. UNL Extension Publication EC 303 12 pp.
  • Paparozzi, E. T. 2013. The challenge of growing strawberries in the greenhouse. HortTechnology 23(6): 800-802.
  • Paparozzi, E. T., Mattson, N., Grossman, M., Burnett, S., Lopez, R. 2013. Creative thinking, creative funding: Research, extension and teaching Programs and consortiums - The 2013 National Floriculture Forum. HortTechnology 23(6):794-795.
  • Thomas, D. and E. T. Paparozzi. 2013. Problems with detecting nutrient availability in experimental hydroponic solutions. J. Plant Nutrition 36:2166-2178.
  • Meyer, G.E., E.T. Paparozzi, E A. Walter-Shea, E.E. Blankenship, and S.A. Adams, 2012.  An Investigation of reflective mulches for use over capillary mat systems for winter-time greenhouse strawberry production. Applied Engineering in Agriculture 28(2):271-279.
  • Lambe, D., S. A. Adams and E. T. Paparozzi.  2012. Estimating construction costs for a low-cost Quonset-style Greenhouse. UNL Extension Publication EC 104. 8 pp.
  • Paparozzi, E. T. and G. E. Meyer. 2012. The return of capillary mats. Greenhouse Grower magazine.  August issue p. 78-84.

Capillary Mat Construction Video

Paparozzi, E. T., Butterfield, A. and S. A. Adams. 2013. Capillary mat construction

Heated Hight Tunnel Construction Video

Paparozzi, E. T., Butterfield, A. and S. A. Adams. 2013. Heated High Tunnel Construction

Greenhouse Bench Construction Video

Paparozzi, E. T., Butterfield, A. and S. A. Adams. 2013. Greenhouse Bench Construction