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Ryan Contreras
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R. Contreras
,
Ruter, J.
, and
Knauft, D.
,
“
Flower, fruit, and petiole color of american beautyberry (Callicarpa americana L.) are controlled by a single gene with three alleles
”
,
HortScience
, vol. 49, no. 4, pp. 422-424, 2014.
R. Contreras
and
Meneghelli, L.
,
“
In Vitro Chromosome Doubling of
Prunus laurocerasus
‘Otto Luyken’ and ‘Schipkaensis’
”
,
HortScience
, vol. 51, no. 12, pp. 1463 - 1466, 2016.
R. Contreras
and
Friddle, M. W.
,
“
‘Oregon Snowflake’ Flowering Currant
”
,
HORTSCIENCE
, vol. 50, no. 3, 2015.
R. Contreras
,
Ruter, J.
,
Owen, J. S.
, and
Hoegh, A.
,
“
Chlorophyll, Carotenoid, and Visual Color Rating of Japanese-cedar Grown in the Southeastern United States
”
,
HORTSCIENCE
, vol. 48, no. 12, 2013.
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
,
Velez, J.
, and
Golembiewsk, R.
,
“
Are Learning Styles, Study Habits, and Performance Correlated in Woody Plant Identification Students?
”
,
HortTechnology
, 2013.
R. Contreras
,
Ruter, J. M.
,
Conner, J.
,
Zeng, Y.
, and
Ozias-Akins, P.
,
“
Confirmation of hybridity using GISH and determination of 18S rDNA copy number using FISH in interspecific F
1
hybrids of
Tecoma
(Bignoniaceae)
”
,
Genome
, vol. 55, no. 6, pp. 437 - 445, 2012.
R. Contreras
,
Determann, R.
, and
Friddle, M. W.
,
“
Differences in Winter Browning among Japanese-cedar Cultivars Are Not Due to Variation in Ploidy Levels
”
,
HortScience
, vol. 46, no. 11, 2011.
R. Contreras
and
Ruter, J.
,
“
Genome Size Estimates and Chromosome Numbers of Callicarpa L. (Lamiaceae)
”
,
HortScience
, vol. 46, no. 4, 2011.
R. Contreras
,
Ruter, J.
, and
Schwartz, B. M.
,
“
Oryzalin-induced Tetraploidy in Cryptomeria japonica (Cupressaceae)
”
,
HortScience
, vol. 45, no. 2, 2010.
R. Contreras
and
Ruter, J.
,
“
Sulfuric acid scarification of Callicarpa americana L. (Lamiaceae) seeds improves germination
”
,
Native Plants Journal
, vol. 10, no. 3, 2009.
R. Contreras
,
Ruter, J.
, and
Hanna, W.
,
“
An Oryzalin-induced Autoallooctoploid of Hibiscus acetosella ‘Panama Red’
”
,
Journal of American Horticultural Science
, vol. 134, no. 5, 2009.
R. Contreras
and
Ranney, T. G.
,
“
New opportunities for breeding fragrant rhododendrons
”
,
Journal of American Rhododendron Society
, vol. 62, no. 4, 2008.
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.
R. Contreras
,
Ranney, T. G.
,
Milla-Lewis, S. R.
, and
Yencho, G. C.
,
“
Investigating parentage and hybridity of three azaleodendrons using AFLP analysis
”
,
HortSCience
, vol. 42, no. 3, 2007.
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
Friddle, M. W.
,
“
Fire blight resistance among interspecific and interploidy F1 hybrids of Cotoneaster
”
,
Proc. 60th Ann. SNA Res. Conf. 60:XXX-XXX
. 2015.
R. Contreras
,
Rothleutner, J. J.
, and
Stockwell, V.
,
“
Breeding for fire blight resistance and sterility in Cotoneaster
”
,
Proceedings of the 13th International Workshop on Fire Blight. Acta Hort
, vol. 1056:221-223. 2014.
R. Contreras
,
Friddle, M. W.
, and
Lattier, J. D.
,
“
Relative fertility and ploidy levels of selected rose of sharon cultivars
”
,
Proc. 58th Ann. SNA Res. Conf.
, vol. 58:232-236. 2013.
R. Contreras
and
Ruter, J. M.
,
“
Induced polyploidy in Japanese cedar
”
,
Proc. 55th Ann. SNA Res. Conf.
, vol. 55:25-29. 2010.
R. Contreras
and
Ruter, J. M.
,
“
Preliminary efforts to induce polyploidy in Cryptomeria japonica.
”
,
Proc. 53rd Ann. SNA Res. Conf.
, vol. 53:159-161. 2008.
R. Contreras
and
Ruter, J. M.
,
“
New Callicarpa species with breeding potential
”
,
Proc. 52nd Ann. SNA Res. Conf.
, vol. 52:327-329. 2007.
R. Contreras
,
Ranney, T. G.
,
Tallury, S. P.
, and
Milla-Lewis, S. R.
,
“
Using molecular markers to investigate parentage of azaleodendron hybrids.
”
,
Proc. 50th Ann. SNA Res. Conf.
, vol. 50:632-635. 2005.
R. Contreras
and
Ranney, T. G.
,
“
New opportunities for breeding allopolyploid azaleodendrons
”
,
Proc. 49th Ann. SNA Res. Conf.
, vol. 49:552-554. 2004.
R. Contreras
and
Meneghelli, L.
,
“
In Vitro Chromosome Doubling of Prunus laurocerasus ‘Otto Luyken’
”
. 2013.
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