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Found 73 results
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Ryan Contreras
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2011
R. Contreras
and
Ruter, J.
,
“
Genome Size Estimates and Chromosome Numbers of Callicarpa L. (Lamiaceae)
”
,
HortScience
, vol. 46, no. 4, 2011.
J. J. Rothleutner
and
Contreras, R.
,
“
Genome size estimates for Cotoneaster spp.
”
. 2011.
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.
2012
J. J. Rothleutner
and
Contreras, R.
,
“
Celebrating Cotoneaster
”
,
Digger
, pp. 33-36, 2012.
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.
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
Rinehart, T.
,
“
An express route to perfection
”
,
Digger
, pp. 47-50, 2012.
K. J. Vining
,
Contreras, R.
,
Ranik, M.
, and
Strauss, S. H.
,
“
Genetic methods for mitigating invasiveness of woody ornamental plants: Research needs and opportunities.
”
,
HortScience
, vol. 47, no. 9, 2012.
B. M. Schwartz
,
Contreras, R.
,
Harris-Schultz, K. R.
, and
Raymer, P. L.
,
“
Identification or Creation of a Putative Triploid Seashore Paspalum
”
. 2012.
T. Einhorn
,
Gibeaut, D.
,
Contreras, R.
, and
Whiting, M. David
,
“
Polyploidy of cells in sweet cherry fruit
”
. 2012.
R. Contreras
,
“
A Simple Chromosome Doubling Technique Is Effective for Three Species of Cupressaceae
”
,
HortScience
, vol. 47, no. 6, pp. 712-714, 2012.
J. J. Rothleutner
and
Contreras, R.
,
“
Variable Fire Blight Resistance Among 31 species of Cotoneaster
”
. 2012.
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
and
McAninch, G.
,
“
Back from the ban: new Buddleja cultivars receive exemption under ODA amendment
”
,
Digger
, pp. 33-36, 2013.
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.
B. M. Schwartz
,
Harris-Schultz, K. R.
,
Contreras, R.
, and
Hans, C. S.
,
“
Creation of artificial triploid and tetraploid centipedegrass using colchicine and breeding
”
,
Intl. Turfgrass Soc. Res. J.
, 2013.
B. M. Schwartz
,
Harris-Shultz, K. R.
,
Contreras, R.
,
Hans, C. S.
, and
Jackson, S. A.
,
“
Creation of Hexaploid and Octaploid Zoysiagrass Using Colchicine and Breeding
”
,
Crop Science
, vol. 53, no. 5, p. 2218, 2013.
B. M. Schwartz
,
Contreras, R.
,
Harris-Schultz, K. R.
,
Heckart, D. L.
,
Peake, J. B.
, and
Raymer, P. L.
,
“
Discovery and characterization of a turf-type triploid seashore paspalum
”
,
HortScience
, vol. 48, no. 12, 2013.
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
,
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
Meneghelli, L.
,
“
In Vitro Chromosome Doubling of Prunus laurocerasus ‘Otto Luyken’
”
. 2013.
B. M. Schwartz
,
Contreras, R.
, and
Hanna, W. W.
,
“
Manipulating the Chromosome Number of Zoysiagrass
”
. 2013.
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.
2014
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
and
Horn, M.
,
“
Breeding to improve garden performance of Penstemon in the Willamette Valley: early stages
”
,
Bulletin of the American Pestemon Society
, vol. 73, pp. 68-72, 2014.
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