College of Agricultural Sciences

J. A. Schulze and Contreras, R., “Effect of ploidy level on vegetative propagation of two cytotypes of Prunus laurocerasus L. ‘Schipkaensis’.”, Combined Proceedings of the International Plant Propagators' Society 65. 2015.

J. J. Rothleutner, Contreras, R., and Stockwell, V., “Evaluation of fire blight resistance of 31 species of Cotoneaster”, Proc. 57th Ann. SNA Res. Conf., vol. 57:276-278. 2012.

R. Contreras and Owen, J. S., “The Economy of Water”, Digger, pp. 139-144, 2011.

C. Landgren, Owen, J. S., and Contreras, R., “Evaluating Soil and Foliar Fertilization of Abies nordmanniana Under Container and Field Production”, Scandinavian Journal of Forest Research, vol. 28, no. 52, pp. 419 - 427, 2013.

R. Contreras and Ruter, J. M., “Evaluation of Callicarpa spp. for utilization in a breeding program”, Georgia Green Industry Association Journal, pp. 32-33, 2008.

R. Contreras, Owen, J. S., Hanna, W., and Schwartz, B. M., “Evaluation of Seven Complex Pennisetum Hybrids for Container and Landscape Performance in the Pacific Northwestern United States”, HortTechnology, vol. 23, no. 4, 2013.

R. Contreras and Rinehart, T., “An express route to perfection”, Digger, pp. 47-50, 2012.

R. Contreras and Ruter, J. M., “Evaluation of Callicarpa spp. for ornamental potential”. 2008.