Office: Email: Phone: Research emphasis:

Department of Horticulture 4017 Ag. and Life Sciences Bldg. Corvallis, Oregon 97331-7304 azarenka@hort.oregonstate.edu Phone: 541-737-9877 Fax: 541-737-3479 Integrated and organic tree fruit farming systems, especially orchard floor management systems, tree fruit and nut biology, physiology, and floral biology

Research Interests
I conduct and coordinate research in tree fruit and hazelnut production and physiology. My research has both adaptive and reductionist components. One current area of focus is on alternative orchard floor management systems (AOFMS) for integrated and organic production systems of sweet cherry. Research areas specific to this theme currently include quantifying the impacts of AOFMS on soil biology, root growth, nitrogen cycling and overall tree performance. Future areas will include quantifying the expression of the nitrate uptake genes in orchard cropping systems. Another area of emphasis is the floral biology of hazelnut, in particular, the prediction of bloom, morphological description and molecular markers associated with particular phenological stages. My adaptive research seeks to identify suitable advanced hazelnut, sweet cherry, and apple selections and rootstocks for use in the Pacific Northwest. I have generated $772,336 for research and teaching support in the past 10 years for these programs.

In horticulture, I have directed 9 graduate programs resulting in advanced degrees, served on 25 graduate committees, and been the graduate school representative on 8 committees.

Publications
Most Significant Publications (Since 1997):
I have published 74 refereed/reviewed articles; 4 Extension publications; 28 non-refereed articles; 52 abstracts; 1 WRCC-17 project proposal.

Hazelnut floral biology:
Bassil, N.V., J. Davis, A.N. Azarenko and S. A. Mehlenbacher. 2001. Nucleic acid extraction from Corylus avellana tissues. Acta Hort 556:241-246.

Bassil, N. and A. N. Azarenko. 2001. Random amplified polymorphic DNA (RAPD) markers for self-incompatibility alleles in Corylus avellana L. Acta Hort. 556:537-544.

Pomper, K. W., A. N. Azarenko, N. Bassil, J. W. Davis, and S.A. Mehlenbacher. 1998. Identification of random amplified polymorphic DNA (RAPD) markers for self-incompatibility alleles in Coryhis avellana L. Theor. Appl. Genet. 97:479-487.

Hampson, C., A. N. Azarenko, and G. Coleman. 1997. Does the genome of Corylus avellana (hazelnut) contain sequences homologous to self-incompatibility gene in Brassica? Theor. Appl. Genet. 93:759-764.

Azarenko, A. N., R. McCluskey, and C. Hampson. 1997. Time of shading influences yield, nut quality, and flowering of hazelnut. Acta Hort. 445:179-184.

Sweet cherry cropping system:
Roche, M. and A. N. Azarenko. 2003. An in vitro leaf bioassay to evaluate resistance of sweet cherry genotypes to Pseudomonas syringae pv. syringae. Acta Hort. (in press).

Lang, G. A., C. M. Guimond, F. Kappel, J. A. Flore, T. J. Facteau, A. N. Azarenko, and S. Southwick. 1998. Performance of calcium/sprinkler-based cherry cracking prevention strategies. Acta Hort. 468:649-656.

Mineral nutrition:
Fallahi, E., H. Khemira, T.L. Righetti, and A.N. Azarenko. 2002. Influence of Foliar Application of Urea on Tree Growth, Fruit Quality, Leaf Minerals, and Distribution of urea-Drived Nitrogen in Apples. Acta Hort. 594:603-610.

Khemira, H. T. L. Righetti, and A. N. Azarenko. 1999. Distribution of urea derived nitrogen supplied to apple leaves. Hort. Sci. 34:1079 1081.

Khemira, H. E. Sanchez, T. L. Righetti and A. N. Azarenko. 1999. Phytotoxicity of urea and biuret sprays to apple foliage. J. of Plant Nutrition 23:35 40.

Khemira, H., T. L. Righetti, and A. N. Azarenko. 1998. Nitrogen partitioning in apple as affected by timing and tree growth habit. J. Hort. Sci. and Biotech. 73:217-223.

Khemira, H., A. N. Azarenko, D. Sugar, and T. L. Righetti. 1997. Postharvest nitrogen application effects on ovule longevity and yield of 'Comice' pear trees. Plant Nutrition 21:405-411.

Cultivar and Rootstock Performance:
Robinson, T., et al. 2003. Performance of Cornell-Geneva rootstocks in the multi-location NC-140 rootstock trials across North America. Acta Hort. 622:521-530.

Hirst, P., D. Hayden, A. N. Azarenko, and R. McCluskey. 2003. Influence of rootstock and growing location on performance of European plum. Acta Hort. (in press).

Azarenko, A. N., E. Mielke, D. Sugar, F. Eady, B. Lay, G. Tehrani, A. Gaus, and C. Rom. 2002. Final Evaluation of the NC140 national Pear Rootstock Trial. Acta Hort. 596:319-323.

McCluskey, R. L., A. N. Azarenko, D. C. Smith, and S. A. Mehlenbacher. 2001. Commercial cultivar and advanced selection evaluations at Oregon State University, Corvallis, OR, USA. Acta Hort. 556:89-96.

Mehlenbacher, S. A., A. N. Azarenko, D. C. Smith, and R. McCluskey. 2001. 'Clark' Hazelnut. Hort. Sci. 36:995-996.

Mehlenbacher, S. A., A. N. Azarenko, D. S. Smith, R. McCluskey. 2000. 'Lewis' hazelnut. Hort. Sci. 35:314 315.

Olsen, J. L., S. A. Mehlenbacher, and A. N. Azarenko. 2000. Hazelnut pollination. HortTechnology 10:113 115.

Perry, R., R. Andersen, A. Azarenko, D. C. Ferree, F. Kappel, C. Rom, S. Southwick, C. S. Walsh, G. Lang, J. L. Anderson, T. Facteau, A. Gaus, F. Morrison, T. Roper, and G. Tehrani. 1998. Performance of the

NC-140 cherry rootstock trials in North America. Acta Hort. 468:291-296.

Azarenko, A. N. and R. McCluskey. 1998. Performance of 'Napoleon' trees topworked on selected Giessen, MxM, GM, and Mazzard rootstocks. Acta Hort. 468:321-326.

General Orchard Systems:
Strong, D. and A. N. Azarenko. 2000. Altered dry matter partitioning of 'Starspur Supreme Delicious' apple trees by none rootstocks. J. Am. Pom. Soc. 54:11 17.

Strong, D. and A. N. Azarenko. 2000. Rootstock influences the construction costs of 'Starkspur Supreme Delicious' apple trees. J. Am. Pom. Soc. 54:18 22.

Strong, D. and A. N. Azarenko. 2000. Relationship between truck cross sectional area, harvest index, total tree dry weight and yield components of 'Starkspur Supreme Delicious' apple trees. J. Am. Pom. Soc. 54:22 27.

Dussi, M. C., D. Sugar, A. N. Azarenko, and T. L. Righetti. 1997. Effects of cooling by over-tree sprinkler irrigation on fruit color and firmness in 'Sensation Red Bartlett' pear. HortTechnology 7(1):55-57.

Plotto, A., M. McDaniel, J. Mattheis, and A. N. Azarenko. 1997. Eating quality of 'Gala' and 'Fuji' apples from multiple harvests and storage durations. HortScience 32:903-908.

Teaching:
Azarenko, A. N. 2000. Situation based and cooperative learning in an upper division fruit production and physiology course. HortTechnology 10:283 286.

Professional Experience
Professor-Head of Horticulture, Oregon State University, 2003-present.
Professor of Horticulture, Oregon State University, 1997-2003.
Associate Professor of Horticulture, Oregon State University, 1991-1997.
Assistant Professor of Horticulture, Oregon State University, 1986-1991.
Graduate Fellow and Assistant, University of Maryland, 1984-86.
Graduate Teaching Assistant, University of Maryland, 1982-84.
Graduate Fellow, University of Maryland, 1981-82.

Courses Taught
In support of the undergraduate Horticulture curriculum, I teach a tree fruit and nut production and physiology course, and co-teach an introductory course in berries, grapes, tree fruits and nuts. I co-administer, advise and teach courses in the undergraduate, interdisciplinary BioResource Research (BRR) major. This interdisciplinary major offers a unique experiential learning opportunity where students develop and implement their own research project in collaboration with a research faculty member. Their project culminates in and undergraduate thesis and seminar. In addition to advising these students on research opportunities, I also teach a course in data presentation, and organize and facilitate mentor participation in the Great Experiments in BioResource Science class and a seminar course. Approximately, 45 students are enrolled in this major annually. Within the BRR major, I have served on 35 undergraduate thesis committees.