College of Agricultural Sciences

J. J. Rothleutner, Friddle, M. W., and Contreras, R., “Ploidy Levels, Relative Genome Sizes, and Base Pair Composition in Cotoneaster”, Journal of the American Society for Horticultural Science, vol. 141, no. 5, pp. 457 - 466, 2016.

R. Contreras, Ranney, T. G., and Tallury, S. P., “Reproductive behavior of diploid and allotetraploid Rhododendron L. ‘Fragrant Affinity’”, HortScience, vol. 42, no. 1, 2007.

J. J. Rothleutner, Contreras, R., Stockwell, V., and Owen, J. S., “Screening Cotoneaster for Resistance to Fire Blight by Artificial Inoculation”, HortScience, vol. 49, no. 12, 2014.

R. Contreras, “A Simple Chromosome Doubling Technique Is Effective for Three Species of Cupressaceae”, HortScience, vol. 47, no. 6, pp. 712-714, 2012.

R. Contreras and Ruter, J., “Sulfuric acid scarification of Callicarpa americana L. (Lamiaceae) seeds improves germination”, Native Plants Journal, vol. 10, no. 3, 2009.

J. D. Lattier, Chen, H., and Contreras, R., “Variation in genome size, ploidy, stomata, and rDNA signals in althea (Hibiscus syriacus L.)”, Hort. Res., Submitted.

E. Tomasino and Contreras, R., “Volatile analysis of three Philadelphus L. parents and resulting progeny.”, HortScience, Submitted.

R. Contreras, “Breeding methods to reduce the invasive potential of nursery crops”. 2010.

B. M. Schwartz, Harris, K., Contreras, R., and Hanna, W., “Colchicine-induced tetraploidy in centipedegrass”. 2010.

J. D. Lattier and Contreras, R., “Colorimetric phenotyping of tetraploid progeny exhibiting incomplete dominance for flower color.”. 2014.

D. Gibeaut, Contreras, R., Einhorn, T., and Whiting, M. David, “Cropload affects the size, but not the number or polyploidy of cells in sweet cherry fruit.”. 2011.

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

R. Contreras and Ruter, J. M., “Fruit color in American beautyberry is controlled by a single gene”. 2010.

J. J. Rothleutner and Contreras, R., “Genome size estimates for Cotoneaster spp.”. 2011.

B. M. Schwartz, Contreras, R., Harris-Schultz, K. R., and Raymer, P. L., “Identification or Creation of a Putative Triploid Seashore Paspalum”. 2012.

R. Contreras and Meneghelli, L., “In Vitro Chromosome Doubling of Prunus laurocerasus ‘Otto Luyken’”. 2013.

R. Contreras, Ruter, J. M., Conner, J., Zeng, Y., and Ozias-Akins, P., “Interspecific hybridization in Tecoma Juss. (Bignoniaceae): Confirmation of hybridity using GISH and morphology”. 2011.

B. M. Schwartz, Contreras, R., and Hanna, W. W., “Manipulating the Chromosome Number of Zoysiagrass”. 2013.

K. Shearer-Lattier and Contreras, R., “Non-targeted mutagenesis of Galtonia candicans by exposing seeds to EMS”. 2014.

R. Contreras and Ruter, J. M., “An oryzalin induced polyploidy from a hybrid of Hibiscus acetosella x H. radiatus(Malvaceae) exhibits reduced fertility and altered morphology”. 2009.

T. Einhorn, Gibeaut, D., Contreras, R., and Whiting, M. David, “Polyploidy of cells in sweet cherry fruit”. 2012.

R. Contreras and Ranney, T. G., “Reproductive behavior of diploid and allotetraploid azaleodendrons”. 2006.

J. J. Rothleutner and Contreras, R., “Variable Fire Blight Resistance Among 31 species of Cotoneaster”. 2012.