- Biography -
Robert L. Wample
Email: rwample@mail.csufresno.edu
Phone: (559) 278-2089
Fax: (559) 278-4795
Education

Ph.D., Plant Physiology University of Calgary, Calgary, Alberta, Canada 1976. Dissertation: Hormonal and morphological responses of Helianthus annuus L. to flooding. Major Professor: Dr. David M. Reid, External Examiner: Dr. Orin E. Smith

B.S., Botany (cum laude) University of Idaho, Moscow, Idaho 1971
 

Employment

5/00-present: Julio Gallo Chair and Director - Viticulture and Enology Research Center and Chair - Department of Viticulture and Enology, California State University, Fresno.

 7/93-4/00: Professor/Horticulturist/Viticulturist, Department of Horticulture and Landscape Architecture, Washington State University, Irrigated Agriculture Research and Extension Center, 24106 N. Bunn Road Prosser, WA

8/86-7/93: Associate Professor/Horticulturist, Department of Horticulture/Landscape Architecture, Washington State University, Irrigated Agriculture Research and Extension Center, 24106 N. Bunn Road, Prosser, WA

8/84-8/86: Associate Professor of Horticulture and Associate Horticulturist, Department Horticulture/Landscape Architecture, Washington State University, Pullman, WA.

1/79-8/84: Assistant Professor of Horticulture and Assistant Horticulturist, Department Horticulture/Landscape Architecture, Washington State University, Pullman, WA. Appointed to Graduate Faculty on December 11, 1980.

9/76-12/78: Assistant Professor of Botany, California State University, Fullerton, CA taught Principles of Botany, Plant Physiology, Plant Anatomy, Experimental Plant Morphology, Introduction to Horticulture; Graduate and Undergraduate Independent Study Students, Graduate Student Advisement Committees

7/75-7/76: Demonstrator, University of Calgary, Calgary, Alberta, Canada supervise graduate teaching assistants and teach Introductory Botany and Plant Physiology laboratories

1974-76: Postgraduate Scholar, National Research Council of Canada

1971-74: Graduate Teaching Assistant, University of Calgary, Calgary, Alberta, Canada

1967-71: Research Technician, USDA-US Forest Service Research Laboratory, Moscow, ID

1962-66: United States Marine Corps
  

Research Interest

Stress physiology, with specific attention to the effects of water and temperature related stresses on plant physiology and crop productivity.In the past, I have worked on the anatomical and physiological responses of annual and perennial plants to flooding and drought conditions. This has been extended to examine the similarities of this research with deficit irrigation and irrigation management of perennial crops.

Since assuming the position of viticulturist I have addressed a wide range of research projects on wine and juice grapes. These have included the effect of regulated deficit irrigation, mechanical pruning and crop load management, and nitrogen fertilization. As a part of these experiments, we have examined their effects on cold hardiness, yield, fruit quality, vegetative growth and development, including root development in some studies. Additional research has focused on thermotherapy procedures used to reduce or eliminate pathogens in wine grapes and tree fruits. This has involved an investigation of heat shock responses in these crops, including the synthesis of heat shock proteins, which are associated with the stabilization of structural and enzymatic proteins during heat stress.
  

Significant Research Accomplishments 
1998 Precision Agriculture Initiatives

Concord - Mechanical Pruning and Mechanical Thinning Study. This study has resulted in the development and use of 'yield monitoring' equipment in conjunction with Harvest Master, Inc. We were the first to apply this new technology, in conjunction with global positioning systems (GPS) to grapevine mechanical thinning and mechanical harvest. This technology is now being experimented with in other areas, especially California. In 1998, with the support and input from Dr. Joan Davenport, we incorporated the use of differential fertilizer applications to this research block to expand our demonstration of precision viticulture. In 1999 Drs. Julie Tarara and Suzanne Lang joined this project to provide information on grapevine water use and remote sensing of canopy quality, respectively. Two presentations, based on this 10-year study, were made at the First Vincent E. Petrucci Symposium at California State University-Fresno.

Concord-Blackleaf Research. With the completion of his Ph.D. research, Dr Russell Smithyman, has shown that blackleaf is not a single phenomenon, but a complex of at least two physiological responses. The first appears to be associated with the inability of the Concord leaf to deal with the high light intensities of the Inland Northwest and results in the formation of free oxygen radicals within the chloroplast. These free radicals subsequently react with various chloroplast components resulting in the loss of chlorophyll and hence reduce photosynthesis. This sequence of events is aggravated by water stress, presumably due to reduced gas exchange and hence reduced availability of electron acceptors. This initial phase of blackleaf development is characterized by discoloration of the mesophyll tissue of the leaf. The second phase of blackleaf development is typical epidermal discoloration associated with the formation of pigment complexes that have very low water solubility and appear black. High levels of UV-B irradiation apparently stimulate the development of these pigments. Research in 1998 demonstrated on a commercial scale that improved irrigation management and the use of commercially available 'sun screens' significantly reduced blackleaf development and resulted in higher yield. Based on preliminary analysis, these practices are economically justified.

Wine Grapes - Cropload - Irrigation Study. The results of this research were a significant portion of the American Society of Enology and Viticulture sponsored International Symposium on Grapevine Irrigation in 1998. There were five presentations from Washington at this meeting that dealt with this work, including presentations by two industry representatives who were involved in the research. Furthermore, this research continues to play an increasingly important role in viticulture management strategies in Washington and have been associated with improvements in fruit and wine quality by the wine maker at the largest winery in the state.

Wine Grapes - cane cold hardiness evaluation. Cold hardiness continues to be a major concern for Washington wine grape growers. The hardiness reporting service we have developed by placing information on the Washington State University wine grape website (winegrapes.wsu.edu) has been the most frequently visited aspect of this site during the late fall, winter and early spring.
 

Membership

Professional 1975-99 American Association for the Advancement of Science
1972-99 American Society of Plant Physiology
1979-99 American Society of Horticultural Science
1985-99 American Society of Enology and Viticulture
1990-99 Northwest Chapter of the American Society of Enology and Viticulture
Civic and Community Rotary International
Prosser Wine and Food Fair Committee
Advisor to the Prosser Economic Development Association
United Good Neighbors

 
Committee Service:

National and International:
Reviewer for "Documentation of Viticultural Research-Vitis-VEA 1998-present
Cochairman of the committee for the International Symposium on Wine Grape Irrigation. 1997-98
Organizing committee for the International Symposium on Nitrogen in Grapes and Wine 1990-91.
National Grapevine Importation Program 1992-present
 
Society Committees
Am. Soc. Enol. & Vitic. Associate Editor 1999; ASEV Chairman Cold hardiness Workshop 1999-2000; Editorial Advisory Board 1990-present; ASEV - Northwest Chapter, President-1998; American Society Horticultural Science - Stress Physiology Working Group 1986-95; American Society of Enology and Viticulture - Best Paper Committee 1991, Scholarship Committee 1992-; Northwest Section Nominations Committee 1993.
 
State and Regional
W-130/ WRCC-17 Freeze damage and protection of fruit and nut crops/ 1987-99
Washington Agriculture and Forestry Leadership Selection Committee (area 4) 1991-92
Washington State Animal Damage Control Advisory Board 1989-92
 
College
Tenure and Promotion Committee 1996-1998 (chairman 1998); Safe Food Initiative 1997-98; Accountability, Information and Communications 1997-1999; Grant proposals submitted to the WSU Office of Grant and Research Development, 1982; Member college-wide Undergraduate Recruitment Committee (WSU), 1980-1982; Elected to the University Senate (WSU), 1982-84; Search Committee Dept. Hort/LA Chairman, 1989-90; Committee to Develop Criteria for Professional Leave, 1990; All faculty conference planning committee, 1992. Search Committee WSU-Prosser Stone Fruit Physiology position 1992-93.
 
Department
1979 - present: Numerous committees including tenure and promotion, faculty advisory to the department chair, CSRS-Review, space allocation and building enhancement, greenhouse, graduate steering, meeting and long-range planning, undergraduate internship, equipment, recruitment, commodity-oriented research, computer.
 

Teaching Activities And Courses Taught:
1994-95 Taught Horticulture 304 at WSU-TriCity Campus in the fall with Drs. S. Lang and D. Evans.
1979-86 Assistant/Associate Professor, Hort 201-Plant Environment Relations, Hort 251-Plant Propagation, Hort 416-Physiology of Horticultural Crops, Hort 501-Horticultural Research Techniques, Hort 503-Environmental Physiology (Stress Physiology), Ag E 590-5 hours of lecture on plant physiology for Agric. Engineers, Hort 503-Low temperature Stress in Plants
1976-78 Assistant Professor, Principles of Botany, Plant Physiology, Plant Anatomy, Experimental Plant Morphology, Introduction to Horticulture, California State Univ., Fullerton, CA.
1975-76 Demonstrator, Introductory Botany, Introductory Plant Physiology laboratories. Univ. of Calgary, Alberta, Canada
1971-74 Graduate Teaching Assistant, Introductory Botany, Introductory Biology. Univ. of Calgary, Alberta, Canada

 

Seminars and invited presentations in the past five years
11/99 Grapevine Irrigation Management. Colorado Grape Growers.
Hot Water Treatment and Crown Gall in Grapevines.
Viticulture Research Update for Washington. Washington Wine Institute.
Concord Grape Research Council - Goals and Accomplishments. Washington State Grape Society.
8/99 High Quality Wine Grape Production: Use of Irrigation Management. International Seminar on Drip Irrigation, Instituto Nacional De Tecnologia, San Rafael, Argentina.
Grapevine Irrigation - Some Things to be Considered. International Seminar on Drip Irrigation, Instituto Nacional De Tecnologia, San Rafael, Argentina.
Replanting Issues: Viticulture, Enology, Winter Injury, Crown Gall Issues. Oregon Wine Advisory Board Series - Phylloxera Summit.  
6/99 Grapevine Irrigation Management. Long Island Grape Growers and Winemakers Mtg
Understanding Grapevine Irrigation and its Management. WA Assn. Wine Grape Growers (WAWGG)
4/99 Advances in Irrigation Management for Optimum Fruit Quality. Annual Conf. New Mexico Grape Growers and Wine Makers.
Cold Hardiness: Spring Warming and Deacclimation. Annual Conf. New Mexico Grape Growers and Wine Makers.
2/99 Grow Tubes: How they work and why to use them. Annual Mtg. WA Assn. Wine Grape Growers (WAWGG)
Observations And discussions of Irrigation Strategies in 1998. Annual Mtg. WA Assn. Wine Grape Growers (WAWGG)
1/99 Irrigation Management for High Quality Wine and Grape Production: Considerations for Western Oregon. Annual Meeting of the Oregon Horticultural Society
1/98 Washington Concord grape production: Past, present and Future. Jan. 15   New York State Horticulture Soc.
Cold injury and recovery in WA wine grapes.  WA Assoc. Of Wine Grape Growers
3/98 Wine grape research update.   Stimson Lane growers meeting.
Water relations and management in grapevines.   Shortcourse
Grapevine Trellising Choices.   Shortcourse
6/98 Grapevine irrigation. Internl. Symp. 
Approaches to irrigation management. Internl. Symp.
7/98 Influence of Irrigation.              NWASEV
Viticulture Research in WA       Wine Writers
8/98 Grapevine Management and Research in WA     Wine Media
11/98 Use of Grow Tubes in Viticulture.    British Columbia Grape Growers
Cold hardiness and winter injury.     British Columbia Grape Growers
12/98 WA viticulture research review.    WA Wine Inst.
2/97 Grapevine recovery from freeze damage.    WA Assoc.
Wine Grape Growers Management of grapevines in anticipation of, or following, challenging winters.    British Columbia Grape Growers
Introduction of Precision Farming Techniques to WA state vineyards. Western Precision Agric Conf. Pasco, WA.
9/97 Mechanization Techniques in the Vineyard-Pruning, Thinning and Harvesting. Annual Meeting of the Texas Wine and Grape Growers. San Antonio, TX
Vine Spacing and Canopy Management. Annual Meeting of the Texas Wine and Grape Growers. San Antonio, TX
Uses of Precision Farming in Viticulture. Washington State Grape Soc.
12/96 Cold hardiness research review.    Northwest Center for Small Fruit Research
11/96 Ten-year summary of mechanical pruning.    Washington State Grape Soc.
7/96 Mechanical pruning and yield/nutrition.       Petrucci Symposium
Mechanical pruning and fruit quality.          Petrucci Symposium
Grapevine cold hardiness - practical aspects. Internatl. Cool Climate Symposium
6/96 WA viticulture and irrigation mgmt.     KWV, South Africa Winegrape Coop.
Powdery mildew and cold injury in wine grapes.    ASEV Nat'l. Meeting
5/96 Grapevine freeze damage - Seminar/workshop.     WA Assoc. Wine Grape Growers
3/96 Grapevine irrigation and cold injury.     Stimson Lane Vineyards and Estates growers
2/96 Grapevine cold injury.    WA Assoc. Wine Grape Growers
1/96 Grapevine irrigation....  GrapeTECH
Irrigation and canopy control of grapevines.   CSU-Fresno, VERC
12/95 Grapevine irrigation, etc.    Northwest Center for Small Fruit Research (NCSFR)
Future of Viticultural and Enological Research in Washington.    WA Wine Institute
11/95 Grapevine pruning/mechanization.    WA grape growers/fieldmen.
10/95 Grapevine cold hardiness mgmt., etc.    W-130/WRCC17 meetings
7/95 Wine grape production.    British Columbia grape growers.
2/95 Physiology of Vinifera crop fluctuation.  WA Assoc. Wine Grape Growers
6/94 Yield trends in WA wine grapes. NWASEV
4/94 Photosynthesis etc. of grapevines.    Short Course
Irrigation strategies.    Short Course
3/94 Clore vineyard research study. St. Michelle growers
2/94 Irrigation of wine grapes.  WA Assoc. Wine Grape Growers
Irrigation of wine grapes.  Walla Walla growers
Concord grape yields in WA.  SW MI Hort. Mtgs.
Drought stress in Concord grapes. SW MI Hort. Mtgs.
1/94 Grapevine cold hardiness. Midwest grape growers, Michigan
Mechanical pruning of grapevines. Grape Tech '94, Sacramento, CA

 
Awards and Honors:
Received the Chateau Ste Michelle Distinguished Professorship in Viticulture 1995
Received the Outstanding Viticulture Paper for 1993
from the American Society of Enology and Viticulture. Member of the Development Committee for the National Grapevine Importation Program (May 1992-).
Invited paper for the International Symposium on Nitrogen in Grapes and Wine, June 1991, Seattle, WA.
Invited participant and session leader at the Second International Symposium on Cool Climate Viticulture, January, 1988, New Zealand
Invited participant to the International Conference on Crop Productivity: Research Imperatives Revisited, Boyne Highlands, Michigan, October 1985.
National Research Council of Canada Scholar, 1974-1976
 

Other Activities:

National Meetings of the American Society of Plant Physiology: 1973, 1975, 1976, 1978-80, 1983, 1984.
National Meetings of the Canadian Society of Plant Physiology: 1973-1977.
Symposium on Energy Transduction and Photosynthetic Carbon Metabolism, Univ. of California, Riverside, January 1978.
National Meeting of the American Society of Horticultural Science: 1979, 1986, 1989, 1991 
Symposium on Environmental Stress, Univ. of Minnesota, March, 1980.
High-Resolution Chromatography Training Course, Calgary, Alberta, Canada, May 1982.
Gordon Conference: CO2 Fixation by Green Plants, July 1982; Temperature Stress in Plants, July 1984, 1989
National Meeting of the American Society of Enology and Viticulture, annually June 1985-present.
Western Regional Meetings (W-130), annually 1988-present.
Northwest chapter of the American Society of Enology and Viticulture, June 1990, 1993.
International Symposium on Nitrogen in Grapes and Wine, Seattle, WA, June 1991.
Western Colorado Horticulture Association, 1993.
W-130/WRCC-17 Regional Research Meeting, Orlando, Fl, October 1994
GrapeTECH Symposium, Sacramento, CA, January 1995
United Grape Symposium, Sacramento, CA, February 1995
Am. Soc. Enol. & Vitic. – National Meeting, Reno, NV, June 1995
Vincent E. Petrucci Symposium, Fresno, CA, July 1995
Zeneca Ag. Tour, England and Italy, July 1995
Fourth International Cool Climate Symposium, Rochester, NY, July 1995
Am. Soc. Enol. & Vitic. – National Meeting, San Diego, CA, June 1997
New York Horticulture Association, Invited Speaker, Buffalo, NY, Jan. 1998
GrapeTECH / WineTech Meeting, Sacramento, CA, Jan. 1998
Unified Symposium, Sacramento, CA, Jan. 1998
Amer. Soc. Enol. & Vitic. – National Meeting, Sacramento, CA, June 1998
International Symposium on Irrigation Management, Sacramento, CA, June 1998. Co-chair and organizer of the symposium.
Northwest Chapter of Am. Soc. Enol. & Vitic., Penticton, B.C. Canada, July 1998. President and organizer of chapter meeting.
World Vinifera Conference, Seattle, WA, July 1998

 

Publications Since 1980:
Refereed Journal

Lang, N.S., J. Silbernagel, E.M. Perry, R.Smithyman, L.Mills and R.L.Wample. 1999. Remote image and leaf reflectance analysis to evaluate the impact of environmental stress on canopy metablolism. HorTechnology 3: (in press).

Folwell, R.J., B.D.Gebers, and R.L.Wample. 1999. Wine grape production and marketing risks in Washington. Small Fruits Review XXX:XXX-xXX

Wample, R.L., L. Mills, and J.R. Davenport. 1999. Use of Precision Farming Practices in Grape Production. p. 897-905. In: P. Robert, R.H. Rust, and W.E.Larson (eds). Proc. 4th International Conf. On Precision Ag. , Minneapolis-St Paul, 19-22 July 1998. ASA/CSSA/SSSA Press, Madison, WI.

Lang, N.S., R. Smithyman, and R. L. Wample. 1998. Photosynthesis and chlorophyll fluorescence in blackleaf affected Concord leaves. Amer. J. Enol. And Vitic. 49: 367-374.

Mink, G.I., R.L. Wample, and W.E. Howell. 1998. Heat treatment of perennial plants to eliminate mycoplasma-like organisms, viruses, and viroids while maintaining plant survival. IN: Plant Virus Disease Control. Edited by A. Hadidi, R.K. Khetarpal, and H. Koganezawa. American Phytopathological Society. 704 pages.

Wample, R.L. 1997. Root growth of hot water treated dormant cuttings of Cabernet Sauvignon as influenced by date of harvest and storage treatment. Amer. J. Enol. And Vitic. 48: 131-136.

Naor, A., and R.L. Wample. 1996. Diurnal internode growth rate in field-grown 'Concord' (Vitis labrusca) grapevines. Journal of Horticultural Science 71: 167-171.

Turner, A.M. and R.L. Wample. 1995. Thermotolerance of dormant and actively growing Cabernet Sauvignon is improved by heat shock. Amer. J. Enol. and Vitic. 46:243-249.

Naor, A., and R.L. Wample. 1995. An examination of a possible rapid field method for the construction of stomatal conductance net assimilation rate relationship in Cabernet Sauvignon grapevines. Scientia Hort. 60:287-292.

Wample, R.L. 1994. A comparison of short- and long-term effects of pruning on cold hardiness of Cabernet Sauvignon and Chardonnay dormant buds. Amer. J. Enol. & Vitic. 45:388-392.

Naor, A., and R.L. Wample. 1994. Gas exchange and water relations of field-grown Concord (Vitis labruscana Bailey) grapevines. Amer. J. Enol. & Vitic. 45:333-337.

Spayd, S.E., R.L. Wample, R.G. Evans, R.G. Stevens, B.J. Seymour, and C.W. Nagel. 1994. Nitrogen fertilization of White Riesling grapes in Washington. Must and wine composition. Amer. J. Enol. & Vitic. 45:34-42.

Spayd, S.E., R.L. Wample, R.G. Stevens, R.G. Evans and A. Kawakami, 1993. Nitrogen fertilization of Riesling grapes in Washington: Yield, yield components and vine size. Amer. J. Enol. and Vitic. 44:

Evans, R.G., S.E. Spayd, R.L. Wample, M.W. Kroeger, and M.O. Mahan. 1993. Water use of Vitis vinifera grapes in Washington. Agric. Water Manage. 23:109-124.

Wample, R.L. 1992. Influence of pre- and post-treatment storage on budbreak of hot water treated cuttings of Cabernet Sauvignon. Amer. J. Enol. and Vitic. 44:153-158.

Wample, R.L., S.E. Spayd, R.G. Evans, and R.G. Stevens. 1992. Nitrogen fertilization of Riesling grapes in Washington: Nitrogen and seasonal effects on cold hardiness of buds and carbohydrate reserves. Amer. J. Enol. and Vitic. 44:159-167.

Wample, R.L., and A. Bary. 1992. Harvest date as a factor in carbohydrate storage and cold hardiness of Cabernet Sauvignon grapevines. J. Amer. Soc. Hort. Sci. 117:32-36.

Wample, R.L., A. Bary, and T.J. Burr. 1991. Heat tolerance of dormant Vitis vinifera L. cuttings. Amer. J. Enol. and Vitic. 42:67-72.

Muniz, J., R.L. Wample, and W.H. Loescher. 1991. Cultivar differences in response to low temperatures in Vitis vinifera callus In Vitro. Amer. J. Enol. and Vitic. 42:341-346.

Wample, R.L., S.E. Spayd, R.G. Evans, and R.G. Stevens. 1991. Nitrogen fertilization and factors influencing grapevine cold hardiness. Internat. Symp. on Nitrogen in Grapes and Wine, 1991. Seattle, WA. pp. 120-125.

Wample, R.L., G. Reisenauer, A. Bary, and F. Schuetze. 1990. Microcomputer-controlled freezing, data acquisition and analysis system for cold hardiness evaluation. HortScience 25:973-976.

Evans, R.G., S.E. Spayd, R.L. Wample, and M.W. Kroeger. 1990. Water requirements of Vitis vinifera grapes. ASAE Publication 4-90 'Visions of the Future' 154-161.

Wample, R.L., B. Schnabel, and M. Ahmedullah. 1987. Leaf area and conductance, internode length, and root structure of five cultivars of Vitis vinifera treated with Paclobutrazol. Amer. J. Enol. and Vitic. 38:255-259.

Schnabel, B.J. and R.L. Wample. 1987. Dormancy and cold hardiness in Vitis vinifera L. cv. White Riesling as influenced by photoperiod and temperature. Amer. J. of Enol. and Vitic. 38:265-272.

Auge, R.M., K.A. Schekel, and R.L. Wample. 1987. Leaf water and carbohydrate status of VA mycorrhizal rose exposed to drought stress. Plant and Soil 99:291-301.

Auge, R.M., K.A. Schekel and R.L. Wample. 1987. Rose leaf elasticity changes in response to mycorrhizal colonization and drought acclimation. Physiologia Plantarum 70:175-182.

Ahmedullah, M., A. Kawakami, C.R. Sandidge, and R.L. Wample. 1986. Effect of Paclobutrazol on the vegetative growth, yield, quality, and winter hardiness of buds of 'Concord' grape. HortScience 21:273-274.

Auge, R.M., K.A. Schekel, and R.L. Wample. 1986. Osmotic adjustment in leaves of VA mycorrhizal and nonmycorrhizal rose plants in response to drought stress. Plant Physiol. 82:765-770.

Auge, R.M., K.A. Schekel, and R.L. Wample. 1986. Greater leaf conductance of well-watered VA mycorrhizal rose plants is not related to phosphorus nutrition. New Phytol. 103:107-116.

LeCain, D.R., K.A. Schekel, and R.L. Wample. 1986. Growth retarding effects of Paclobutrazol on weeping fig. HortScience 21:1150-1152.

Wieland, W.F. and R.L. Wample. 1985. Root growth, water relations and mineral uptake of young 'Delicious' apple trees treated with soil- and stem-applied paclobutrazol. Scientia Hort. 26:129-137.

Wieland, W.F., and R.L. Wample. 1985. Effects of paclobutrazol on growth, photosynthesis and carbohydrate content of 'Delicious' apple. Scientia Hort. 26:139-147.

Braue, C.A., R.L. Wample, P.E. Kolattukudy, R.E. Thornton, and B.B. Dean. 1984. Influence of vine senescence on maturity and wound healing of Russet Burbank tubers. Amer. Potato J. 61:475-484.

Guy, R.D. and R.L. Wample. 1984. Stable carbon isotope ratios of flooded and non-flooded sunflowers (Helianthus annuus L.). Can. J. Bot. 62:1770-1774.

Wample, R.L. and R.K. Thornton. 1984. Differences in the response of sunflowers (Helianthus annuus L.) subjected to flooding and drought stress. Physiologia Plantarum 61:611-616.

Wample, R.L. and E.B. Culver. 1983. The influence of Paclobutrazol, a new growth regulator, on sunflowers. J. Amer. Soc. Hort. Sci. 180(1):122-125.

Wample, R.L. and R.W. Davis. 1983. Effect of flooding on starch accumulation in chloroplasts of sunflower (Helianthus annuus L.). Plant Physiol. 73:195-198.

Wample, R.L. and S.L. Farrar. 1983. Yield and quality of furrow and trickle irrigated hop (Humulus lupulus L.) in Washington State. Agric. Water Mgmt. 7:457-470.

Braue, C.A., R.L. Wample, P.E. Kolattukudy, and B.B. Dean. 1983. Relationship of potato tuber periderm resistance to plant water status. Amer. Potato J. 60:827-837.

Wheeler, N.C., R.L. Wample and R.P. Pharis. 1980. Promotion of flowering in the pinaceae by gibberellins III. Seedlings and sexually mature grafts of Lodgepole pine. Physiol. Plant. 50:340-346.

Refereed Journal Publications in Preparation/Review

Wample, R.L., L. Mills, and A. Kawakami. Influence of 10 years of mechanical pruning on root distribution and carbohydrate status of Concord grapevines in Washington.

Shoemake, J., R.L. Wample, and L. Mills. Microenvironmental effects of grow tubes on grapevine growth and development.

Smithyman, R., and R.L. Wample. Influence of light and water stress on Blackleaf development in Concord grapevines.

Perry, E.M., D.N. Anderson, R.L. Wample, N.S. Lang, and R. Smithyman. 1998. Hyperspectral signatures for spatial characterization of crop disease and nutrient status. Submitted to Computers and Electronics in Agriculture.
 

Non-refereed Technical Reports

Wample, R.L., S. Spayd, R.G. Evans, L. Mills, and A. Wichers. 1992. Drought studies on Wine and Juice Grapes at Washington State University - IAREC. Proc. Wash. State Grape Soc. 22:9-21.

Wample, R.L., and G. Willett. 1993. Trickle irrigation: Improving hop yield and quality in an economically and environmentally correct manner. HOPS U.S.A. 1: 4.

Wample, R.L., S. Spayd, L. Mills, and A. Wichers. 1992. Mechanical pruning of 'Concords' in Washington: The Fifth Year. Proc. Wash. State Grape Soc. 21:21-26.

Wample, R.L. 1992. What happens during a freeze: Mechanisms of cold injury in grapevines. Proc. Wash. State Grape Soc. 21:17-20.

Wample, R.L., S. Spayd, A. Bary, and A. Wichers. 1991. Four years of mechanical pruning in Washington - A research update. Proc. Wash. State Grape Soc. 20: 9-24.

Spayd, S.E., R.G. Evans, and R.L. Wample. 1991. Irrigation/crop level studies at WSU-IAREC. Proc. of the British Columbia Grape Forum.

Wample, R. L., R. G. Evans, A. Bary, and A. Wichers. 1990. 1989 Drought studies. Proc. Wash. State Grape Soc. 19:23-28

Wample, R.L., S. Spayd, A. Bary, and A. Wichers. 1990. Mechanical pruning and shoot positioning research. Proc. Wash. State Grape Soc. 19:29-41.

Wample, R.L., S.E. Spayd, A. Bary, and A. Wichers. 1989. Mechanical pruning and shoot positioning research. Proc. Wash. State Grape Soc. 19:29-41

Wample, R.L., A. Bary and A. Wichers. 1988. The relationship of harvest date and storage carbohydrates to Cabernet Sauvignon cold hardiness and injury. In Proceedings of the Second International Symposium for Cool Climate Viticulture and Oenology. R. Smart, R. Thornton, S. Rodriguez and J. Young (Eds.). Auckland, New Zealand, Jan. 11-15.

Wample, R.L. 1995. Grapevine cold hardiness, pruning. Tenth Annual Midwest Reg. Grape and Wine Conf., Ossage Beach, MO, pp 25-40.

Wample, R.L., S. Spayd, W. Clore and J. Watson. 1988. Major factors influencing development of Washington's wine industry. Seasonal International Symposium for Cool Climate Viticulture and Oenology. David Jackson, Symposium Director. Lincoln Seminar, Canterbury, New Zealand, Jan. 25, 1988.

Wample, R.L., R. Evans, A. Bary, and A. Wichers. 1988. 1988 Drought Studies. Proc. Wash. State Grape Soc. 18:11-19.

Wample, R.L., S. Spayd, A. Bary, and A. Wichers. 1988. Mechanical pruning and shoot positioning research. Proc. Wash. State Grape Soc. 18:21-34.

Wample, R.L., A. Bary, and A. Wichers. 1987. Mechanical pruning and shoot positioning research. Proc. Wash. State Grape Soc. 17:29-47.

Spayd, S.E., R.G. Stevens, R.L. Wample, and R.G. Evans. 1987. Cold Creek nitrogen fertigation study. Proc. Wash. State Grape Soc. 17:49-50.

Wample, R.L. 1986. Grapevine cold hardiness and injury and their relationship to harvest date and carbohydrates. Proc. Wash. State Grape Soc. 16:19-31.

Ahmedullah, M., A. Kawakami, and R.L. Wample. 1984. The effect of growth inhibitor Paclobutrazol on the vegetative growth, yield and quality of Concord grapes. Proc. Wash. State Grape Soc. 14:79-82
 

Non-refereed Technical Reports and Proceedings Publications

Wample, R.L. 1999. High Quality Wine Grape Production: Use of Irrigation Management. Proceedings: International Seminar on Drip Irrigation, Instituto Nacional De Tecnologia, San Rafael, Argentina.

Wample, R.L. 1999. Grapevine Irrigation - Some Things to be Considered. Proceedings:International Seminar on Drip Irrigation, Instituto Nacional De Tecnologia, San Rafael, Argentina.

Wample, R.L. 1999. Irrigation Management for High Quality Wine Grape Production: Considerations for Western Oregon. Proceedings of the Oregon Horticultural Society 90: 139-148.

Perry, E.M., D.N. Anderson, R.L. Wample, N.S. Lang, R. Smithyman, and V. Hunsaker. 1998. Hyperspectral signatures for spatial characterization of crop disorders and nutrient status. First International Conference on Geospatial Information in Agriculture and Forestry. June 1-3, 1998. Lake Buena Vista, FL.

Silbernagel, J., N.S. Lang, R.L. Wample, R. Smithyman, and W.G. Hendrix. 1998. Geospatial Analysis of Blackleaf in Vitis. First International Conference on Geospatial Information in Agriculture and Forestry. June 1-3, 1998. Lake Buena Vista, FL.

Wample, R.L. 1996. Mechanical pruning and the influence on yield components and nutritional factors in grape production. The first Vincent E. Petrucci Viticulture Symposium, July, Fresno, CA.

Wample, R.L. 1996. Effects of mechanical pruning on fruit quality. The first Vincent E. Petrucci Viticulture Symposium, July, Fresno, CA.

Wample, R.L. and T.K. Wolf. 1996. Practical considerations that impact vine cold hardiness. Fourth International Cool Climate Viticulture Symposium, July, Rochester, NY.

Wample, R.L., R.E. Thornton, and C.A. Braue. 1984. Effect of late season soil moisture on Russet Burbank tuber maturity and storability. Proc. Wash. Potato Conf. and Trade Fair. pp. 13-17.

Final Report--An Evaluation of Drip and Furrow Irrigation of Hops (Humulus lupulus L.). 147 pp. R.L. Wample, L.K. Hiller, L.G. James, and S.F. Farrar. Submitted to: Economic Development Administration, U.S. Department of Commerce. Oct. 1982.

Development of Oilseeds as Alternative Crops for the Pacific Northwest. R.L. Wample (contributor--multi-author). Submitted to the Pacific Northwest Regional Commission. September 1980.
 

Books, Book Chapters

Mink, G.I., R.L. Wample and W.E. Howell. 1997. Heat Treatment of Perennial Plants to Eliminate Mycoplasma-like Organisms, Viruses and Viroids While Maintaining Plant Survival. In: Plant Virus Disease Control. Springer-Verlag pp. 332-345

L.E. Williams, N.K. Dokoozlian and R.L. Wample. 1994. Grapes. In: Handbook of Environmental Physiology of Fruit crops: Grapes. CRC Press.

Reid, D.M. and R.L. Wample. 1985. Water relations and plant hormones. In Pharis, R. P. and D. M. Reid (Eds.). Hormonal Regulation of Development. III. Role of Environmental Factors. Encyclopedia of Plant Physiology, New Series, Vol. 11:513-578. Springer-Verlag, Berlin Heidelberg.
 

Non-technical (Magazines)

Wample, R.L. 1998. Precision Practices in Grapes. IN: 98 Agriculture. Published by Penny Press Publications, Yakima, WA

Wample, R.L. 1997. When Understanding irrigation - many things are to be considered. Vineyard and Winery Management, Nov./Dec. 7 pages.

Wample, R.L. 1997. Important issues in vineyard irrigation. IN: Goodfruit Grower. 8 pages.

Wample, R.L. 1996. Issues in vineyard irrigation. IN: Wine East, July/August 1996. 11 pages.

Contributions to the WSU "Wine and Grape Research News"

Spayd, S.E. and R.L. Wample. 1995. Guidelines for crop estimation of wine grapes. The practical Winery and Vineyard March/April pp. 6-12.

Research summaries presented in the Washington State University Wine and Grape Research News, June and December, 1988 to present.

Farrar, S.F., R.L. Wample, and G. Willett. Drip Irrigation of Hops: Profits and Advantages. In The Grower Magazine, Othello, WA. June 1982. This article also appeared in the national magazine Drip/Trickle Irrigation 4 (2):11-13.
 

Published Abstracts, Papers and Posters Presented

Shoemake, J., R.L. Wample and L. Mills. 1999 Determining the microenvironmental factors of grow tubes that effect grapevine growth and development. Ann. Mtg. NW Chapter of ASEV. Stevenson, WA.

Neumann, M., R.L. Wample, and S. Greene. 1999. Objective quantification of vegetative cover in cover crops using computer digital image analysis. Ann. Mtg. NW Chapter of ASEV. Stevenson, WA.

Wample, R.L., L. Mills and A Kawakami. 1999. Root Growth of mechanically pruned grapevines-Hypothesis and reality. Ann. Mtg. NW Chapter of ASEV. Stevenson, WA.

Smithyman, R.P. and R.L.Wample. 1999. Grapevine Chlorophyll fluorescence and gas exchange: Indication of chronic photoinhibition under water deficit conditions. Ann. Mtg. ASEV, Reno NV.

Wample, R.L., J. Shoemake, and L. Mills. 1999. Physiological Responses of grapevines to "Grow-Tube" microenvironmental conditions. Ann. Mtg. ASEV, Reno NV.

Shoemake, J., R.L. Wample and L. Mills. 1999. Exploring the microenvironment of grow tubes on Vitis vinifera. Ann. Mtg. ASEV, Reno NV.

Neumann, M., R.L. Wample, and S. Greene. 1999. Objective quantification of vegetative cover in cover crops using computer digital image analysis. Ann. Mtg. ASEV. Reno, NV.

Munnell, J. And R.L. Wample. 1998. Evaluating light transmission characteristics of four different grow tubes and their influence on grapevine physiology. Annual meeting of the Amer. Soc. Enol. And Viticulture. Sacramento, CA.

Silbernagel, J., N.S. Lang, R.L. Wample, R. Smithyman, W.G. Hendrix. 1998. Geospatial analysis of blackleaf in Vitis. Computer and Electronics in Agriculture.

Smithyman, R., R.L. Wample, N.S. Lang, and L. Mills. 1998. Water deficit, light intensity, and UV-B irradiation influence on development of blackleaf symptoms in grapevines. Annual meeting of the Amer. Soc. Enol. And Viticulture. Sacramento, CA. Amer. Jour. Enol. and Viticulture. 49:354.

Spayd, S.E., R. G. Stevens, R.L. Wample, R.G. Evans, C.G. Edwards, and D. Webster. 1998. Impact of nitrogen fertilkization on vine performance and juice and wine composition of Riesling in Washington state. XXVth International Horticultural Congress. August 6, Brussels.

Wample, R.L., C. Hossom, S. Spayd, and L. Mills. 1998. Approaches to irrigation management - experimental design and viticultural methods. International Symposium on Practical Aspects of Irrigation Management. June, 1998. Sacramento, CA.

Wample, R.L. 1998. Grapevine irrigation - developing a better understanding of its role in vineyard management. International Symposium on Practical Aspects of Irrigation Management. June, 1998. Sacramento, CA.

Perry, E.M., D.N. Anderson, R.L. Wample, N.S. Lang, R. Smithyman, and V. Hunsaker. 1998. Hyperspectral signatures for spatial characterization of crop disorders and nutrient status. First International Conference on Geospatial Information in Agriculture and Forestry. June 1-3, 1998. Lake Buena Vista, FL.

Silbernagel, J., N.S. Lang, R.L. Wample, R. Smithyman, and W.G. Hendrix. 1998. Geospatial analysis of blackleaf in Vitis. First International Conference on Geospatial Information in Agriculture and Forestry. June 1-3, 1998. Lake Buena Vista, FL.

Silbernagel, J., N.S. Lang, R.L. Wample, R. Smithyman, W.G. Hendrix, and L. Mills. 1998. Using blimp-borne and fixed-wing photography to capture spatial patterns of blackleaf in vineyards. 13th Annual US Landscape Ecology Symposium. March. East Lansing, MI.

Silbernagel, J., N.S. Lang, R.L. Wample, W.G. Hendrix, R. Smithyman, L. Mills, and E. Perry. 1997. Spatial analysis of leaf chlorosis and blackleaf in Vitis. Proceeding of NW Center for Small Fruit Research. December.

Wample, R.L., L. Mills, and J. Davenport. 1998. Use of precision farming practices in grape production. 4th International Conference on Precision Agriculture. July 19-22, 1998. St. Paul, MN.

Wample, R.L., M. Goffinet and L. Mills. 1997 Anatomy and physiology of grapevine injury and recovery associated with freezing temperatures. Amer. Soc. Enol. & Vitic. San Diego, CA

Wample, R.L. and L. Mills. 1997. Effect of irrigation management on grapevine cold injury and
vine growth and yield the following season. Amer. Soc. Enol. & Vitic. San Diego, CA

Mills, L. and R.L. Wample. 1997. Evaluation of graft union cold hardiness and low temperature injury. Amer. Soc. Enol. & Vitic. San Diego, CA

Wample, R.L., L. Mills, and G. McClure. 1997. The development of the pathological stage of grapevine crown gall: Shoot tip culture of grapevine rootstocks to eliminate crown gall bacteria.
Amer. Soc. Enol. & Vitic. San Diego, CA

Smithyman, R.P., R.L. Wample, and L. Mills. 1997. Influence of water stress on pre-veraison development of blackleaf symptoms in Concord grapevines. Amer. Soc. Enol. & Vitic. San Diego, CA

Wample, R.L. 1996. Irrigation management of wine grapes to control canopy development and wine quality. January 23. GrapeTECH Seminars, Sacramento, CA.

Smithyman, R.P., R.L. Wample, N.S. Lang and L. Mills. 1996. The use of chlorophyll fluorescence in the field for determining photosynthetic efficience of Concord grapevines exhibiting Blackleaf symptoms. Northwest Section of the Amer. Soc. Enol. & Vitic. Coeur d'Alene, ID.

Smithyman, R.P., R.L. Wample, N.S. Lang, and L. Mills. 1996. Influence of Blackleaf on photosynthesis in Concord grapevines. Amer. Soc. Enol. & Vitic. Reno, NV.

Wample, R.L., L. Mills, and A. Wichers. 1996. Cold hardiness of bud and cane tissues of Chardonnay, White Riesling, and Chenin blanc as affected by powdery mildew. Amer. Soc. Enol. & Vitic. June. Reno, NV.

Wample, R.L. 1996. Mechanical pruning and the influence on yield components and nutritional factors in grape production. The first Vincent E. Petrucci Viticulture Symposium. July. Fresno, CA.

Wample, R.L. 1996. Effects of mechanical pruning on fruit quality. The first Vincent E. Petrucci Viticulture Symposium. July. Fresno, CA.

Wample, R.L., and T.K. Wolf. 1996. Practical considerations that impact vine cold hardiness. Fourth International Cool Climate Viticulture Symposium. July. Rochester, NY.

Wample, R.L. 1995. Grapevine cold hardiness, pruning. Tenth Annual Midwest Reg. Grape and Wine Conf., Ossage Beach, MO

Wample, R.L. and L. Mills. 1995. Environmental and crop load effects on cluster development. Amer. Soc. Enol. & Vitic., Corvallis, OR

Morrell, A.M. and R.L. Wample. 1995. Expression of heat shock proteins in dormant buds of Cabernet Sauvignon. Amer. Soc. Enol. & Vitic., Corvallis, OR.

Wample, R.L. and L. Mills. 1993. Effect of pretreatment on the thermotolerance of dormant Vitis vinifera cv. Cabernet Sauvignon hardwood cuttings. Amer. Soc. Hort. Sci. July, Nashville, TN.

Wample, R.L. 1993. Cold hardiness response of Cabernet Sauvignon and Chardonnay grapevines to winter pruning. Amer. Soc. Hort. Sci. July, Nashville, TN.

Wample, R.L., L. Mills, and A. Wichers. 1993. Mechanical pruning study 1993: Seven years after the beginning. WA State Grape Soc. Nov., Yakima, WA.

Wample, R.L. 1994. The miracle of mechanized pruning. GrapeTech '94. January, San Jose, CA.

Wample, R.L. 1994. Irrigation management to control canopy development in Sauvignon blanc grapevines in Washington. Amer. Soc. Enol. & Vitic. June, Anaheim, CA.

Wample, R.L., L. Mills and A. Wichers. 1994. Effect of cropload and mechanical pruning on cold hardiness of Concord buds in Washington State. Amer. Soc. Enol. & Vitic. June, Anaheim, CA.

Wample, R.L. and L. Mills. 1993. Effect of heat shock on the heat and cold tolerance of dormant cuttings of Cabernet Sauvignon. 1993 Ann. Mtg. of the Am. Soc. Enol. & Vitic., Sacramento, CA

Wample, R.L. 1993. Heat and cold tolerance of six rootstocks grown in Washington. 1993 Ann. Mtg. of the Am. Soc. Enol. & Vitic., Sacramento, CA

Turner, A.M. and R.L. Wample. 1993. Heat shock protein synthesis in Cabernet Sauvignon. 1993 Ann. Mtg. of the Am. Soc. Enol. & Vitic., Sacramento, CA

Morrell, C.P., R.L. Wample, L.J. Mills, R. Kenison, and K. Corliss. 1993. Effects of shoot removal on frosted Chardonnay, White Riesling, and Cabernet Sauvignon grapevines in Washington. 1993 Ann. Mtg. of the Am. Soc. Enol. & Vitic., Sacramento, CA

Mills, L. and R.L. Wample. 1993. A procedure for estimating the number of flowers per cluster in grapes. 1993 Ann. Mtg. Am. Soc. Enol. & Vitic. Sacramento, CA

Wample, R.L., A. Naor, K. Corliss, C. Morell, D. Gore, and L. Mills. 1993. Influence of irrigation management on canopy development, fruit and wine quality of Sauvignon blanc grapevines in Washington. 1993 Ann. Mtg. NW Sec. of the Am. Soc. Enol. & Vitic., Warm Springs, OR.

Turner, A.M. and R.L. Wample. 1992. Heat shock response in dormant grape buds. 1992 Ann. Mtg. of the NW Sec. of the Am. Soc. Enol. & Vitic., Kelowna, British Columbia, Canada

Spayd, S.E., R.L. Wample, R.G. Stevens, and R.G. Evans. 1992. Nitrogen fertilization of Reisling vines: Impact on nutrient status and vine performance. 1992 Ann. Mtg. of the NW Sec. of the Am. Soc. Enol. & Vitic., Kelowna, British Columbia, Canada

Wample, R.L. and L. Mills. 1992. Cold hardiness and winter injury of mechanically pruned and balance pruned 'Concord' grapevines in Washington. 43rd Ann. Meeting of the Amer. Soc. Enol. and Vitic. June, Technical Abstracts

Wample, R.L. and L. Mills. 1992. Influence of reduced irrigation on low temperature injury to wine grapes in Washington. 43rd Ann. Meeting of the Amer. Soc. Enol. and Vitic. June, Technical Abstracts (in press).

Wample, R.L., S.E. Spayd, R.G. Evans, and R.G. Stevens. 1991. Nitrogen fertilization and factors influencing grapevine cold hardiness. Internat. Symp. on Nitrogen in Grapes and Wine, June 18-19, Seattle, WA.

Spayd, S.E., R. Stevens, R. Evans, R. Wample, and C. Nagel. 1991. Vineyard nitrogen fertilization effects on must and wine composition and quality. Internat. Symp. on Nitrogen in Grapes and Wine. June 18-19, Seattle, WA.

Wample, R.L. 1991. Response of heat treated dormant Cabernet Sauvignon cuttings to pre and post treatment storage. 42nd Ann. Meeting of the Amer. Soc. Enol. and Vitic. Technical Abstracts, p. 29.

Wample, R.L. 1991. Drought and crop removal effects on Concord grapevine physiology and cold hardiness. 88th Ann. Meeting of the Amer. Soc. Hort. Sci.

Wample, R.L., S. Spayd, R. Stevens, and R.G. Evans. 1990. Irrigation and nitrogen effects on fruit quality. NW Chapter of Amer. Soc. Enol. and Vitic. Amer. J. Enol. Vitic. 42:90.

Evans, R.G., S. Spayd, R.L. Wample, and M.W. Kroeger. 1990. Water requirements of Vitis vinifera grapes. Ann. Mtg. Amer. Soc. Agric. Engineers.

Wample, R.L., and A. Bary. 1990. Heat tolerance and heat shock response of dormant Vitis vinifera cuttings. 41st Ann. Mtg. Amer. Soc. Enol. and Vitic. Technical Abstracts, pg. 14.

Evans, R.G., S.E. Spayd, R.L. Wample, and M.W. Kroeger. 1989. Water requirements and irrigation management of Vinifera grapes. 3rd Natl. Irrig. Symp. Phoenix, AZ, Oct. 28-Nov. 1.

Wample, R.L., and A. Bary. 1989. Dehydration as a potential significant factor in grape cold hardiness. 86th Ann. Mtg. Amer. Soc. Hort. Sci. Program and Abstracts, pg. 133.

Wample, R.L., F. Scheutze, G. Reisenauer, and A. Bary. 1989. Microcomputer-controlled freezing and data acquisition for cold hardiness evaluations. 86th Ann. Mtg. Amer. Soc. Hort. Sci. Program and Abstracts pg. 69.

Wample, R.L., A. Bary, and R.G. Evans. 1989. Influence of drought stress on cold hardiness of wine grapes. 40th Ann. Mtg. Amer. Soc. Enol. and Vitic. Technical Abstracts, pg. 23.

Wample, R.L., R.G. Evans, A. Bary, and A. Wichers. 1989. 1989 Drought studies. Ann. Mtg. Wash. State Grape Soc. Nov. 28, Yakima.

Wample, R.L., S.E. Spayd, A. Bary, and A. Wichers. 1989. Mechanical pruning and shoot positioning research. Proc. Wash. State Grape Soc. 19:29-41

Wample, R.L, A. Bary and A. Wichers. 1988. The relationship of harvest date and storage carbohydrates to Cabernet Sauvignon cold hardiness and injury. In Proc. of the Second Internat. Symp. for Cool Climate Vitic. and Oenol. R. Smart, R. Thornton, S. Rodriguez and J. Young (Eds.). Auckland, New Zealand, Jan. 11-15. pp. 95-97.

Wample, R.L., S. Spayd, W. Clore and J. Watson. 1988. Major factors influencing development of Washington's wine industry. Seasonal Internat. Symp. for Cool Climate Vitic. and Oenol. David Jackson, Symposium Director. Lincoln Seminar, Canterbury, New Zealand, Jan. 25.

Wample, R.L. R. Evans, A. Bary, and A. Wichers. 1988. 1988 Drought Studies. Ann. Mtg. Wash. State Grape Soc. Nov. 29, Yakima.

Wample, R.L., S. Spayd, A. Bary, and A. Wichers. 1988. Mechanical pruning and shoot positioning research. Ann. Mtg. Wash. State Grape Soc. Nov. 29, Yakima.

Wample, R.L. 1987. Shoot positioning and canopy development. Ann. Mtg. Wash. State Grape Soc. Dec. 1, Yakima.

Wample, R.L. and T. Burr. 1987. Crown gall progress. Ann. Mtg. Wash. State Grape Soc. Dec. 1, Yakima.

Wample, R.L. 1987. Stresses and their effects on grape cluster development and quality. Wash. State Univ. Coop. Ext. Grape Seminar - Improving Cluster Quality. Nov. 17, Richland, WA.

Wample, R.L. 1987. Role of temperature and photoperiod on the development of cold hardiness. Minnesota Grape Grower's Assoc., March 21, River Falls, WI.

Wample, R.L. 1987. The influence of harvest date on cold hardiness. Minnesota Grape Grower's Assoc. March 21, River Falls, WI.

Wample, R.L. 1987. Critical temperatures. WA Grape Field Personnel Meeting. February 5, Grandview, WA.

Edmiston, J. and R.L. Wample. 1987. Varietal differences in Vitis vinifera cultivars to low temperatures. Amer. Soc. Enol. and Vitic. June 25-27, Anaheim, CA. Technical Abstracts, pg. 31.

Evans, R.G., S.E. Spayd, and R.L. Wample. 1987. Water management and winter hardiness of Vinifera grapes. PNW Irrig. Research Workshop. Nov. 5-6, Kennewick, WA.

Auge, R.M., K.A. Schekel, and R.L. Wample. 1986. Vesicular-arbuscular mycorrhizal: Aid to droughted rose? Internat. Hort. Cong., #114. Aug. 10-18, Davis, CA, HortScience 21:123.

Edmiston, J., and R.L. Wample. 1986. Examination of varietal responses to low temperatures in Vitis vinifera callus. Internat. Hort. Cong., #285. Aug. 10-18, Davis, CA, HortScience 21:146.

Lohr, V.I., C.H. Pearson-Mims, and R.L. Wample. 1986. Membrane integrity and permeability in senescing rose petals. Internat. Hort. Cong., #255. Aug. 10-18, Davis, CA, HortScience 21:142.

Schnabel, B.J., and R.L. Wample. 1986. Dormancy and cold hardiness in Vitis vinifera L. cv. 'White Riesling' as influenced by photoperiod and temperature. Amer. Soc. Enol. and Vitic. June 26-28, Anaheim, CA, Technical Abstracts pg. 27.

Schnabel, B.J., and R.L. Wample. 1986. Control of dormancy and cold hardiness in Vitis vinifera L. Cv. 'White Riesling' by photoperiod and temperature. Internat. Hort. Congress #1063. Aug. 10-18, Davis, CA, HortScience 21:253.

Askham, L., M. Godfrey and R.L. Wample. 1985. Translocation of anticoagulant rodenticide in plant systems. IV Internat. Theriological Cong., Edmonton, Alberta, Canada.

LeCain, D., K. Schekel and R. Wample. 1984. The effect of Paclobutrazol on acclimatization of Ficus benjamina L. Ann. Mtg. Amer. Soc. for Hort. Sci. HortScience 19:111.

Wample, R.L., M. Ahmedullah and B. Schnabel. 1984. Response of five cultivars of Vitis vinifera to Paclobutrazol--A new growth regulator. Amer. Soc. Enol. and Vitic. San Diego, CA. Technical Abstracts.

Wample, R.L. 1984. Carbon transport and allocation in flooded sunflowers. Ann. Meeting Amer. Soc. Plant Physiol. Plant Physiol. 75(165):30

Wample, R.L., B. Schnabel and M. Ahmedullah. 1984. Response of five cultivars of Vitis vinifera to Paclobutrazol. Ann. Mtg. Amer. Soc. for Hort. Sci. HortScience 19:63.

Wieland, W.F. and R.L. Wample. 1984. Effects of Paclobutrazol on shoot growth, photosynthesis and root growth in apple. Ann. Mtg. Amer. Soc. for Hort. Sci. HortScience 19:53

Wieland, W.F. and R.L. Wample. 1984. Effects of Paclobutrazol on plant growth, water relations and mineral uptake in 'Delicious' apple. Ann. Mtg. Plant Growth Regulator Soc. of Amer.

Wample, R.L. and R.W. Davis. 1983. The effect of flooding on carbohydrate levels and transport in sunflowers. Ann. Mtg. ASPP. Plant Physiol. 72(550):97.

Guy, R.D. and R.L. Wample. 1983. Stable carbon isotope ratios of flooded and non-flooded sunflowers. West. Reg. Mtg. of the Canadian Soc. of Plant Physiol. Feb. 1983, Univ. of Alberta, Edmonton, Alberta, Canada.

Wample, R.L. and R.K. Thornton. 1982. The influence of flooding on photosynthesis in sunflowers. Gordon Research Conference: CO2 Fixation in Green Plants; July 1982, Andover, NH.

Farrar, S.F. and R.L. Wample. 1981. An evaluation of trickle versus furrow irrigation of hops. Pac. Div., Amer. Assoc. for the Advance. of Science, June.

Wample, R.L. 1981. The influence of a new growth regulating compound on plant water relations. Pac. Div., Amer. Assoc. for the Advance. of Science, June.

Thornton, R.K. and R.L. Wample. 1980. Changes in sunflower in response to water stress conditions. Ann. Mt. ASPP. Plant Physiol. 65(6) Supp. No. 29.
 

Extension Publications

Gebers, B., S. Crawford, R.J. Folwell, R. Wample, and T. Thorsen. 1995. Establishment and annual production cost for Washington wine grapes. EB 1588.

Schimmel, J.G., R.J. Folwell, and R.L. Wample. 1990. The economics of establishing and operating a Concord grape vineyard. EB 1572.

Chvilecek, J., J. Schimmel, D. Bridges, R.J. Folwell, and R.L. Wample. 1990. Establishment and annual production costs for Washington wine grapes. EB 1588.

Farrar, S.F., R.L. Wample and G.S. Willett. 1983. Cultural and economic evaluation of trickle irrigation of hops. Wash. State Univ. Ext. EB 1197.

Wample, R.L. 1982. Water and the tree. In Water Management and Irrigation of Tree Fruits--Proceedings of the Shortcourse--1982 (R. B. Tukey, ed.), pp. 89-94.

Wample, R.L. 1982. Water stress in fruit trees. In Water Management and Irrigation of Tree Fruits--Proceedings of the Shortcourse--1982 (R. B. Tukey, ed.) pp. 95-108.
 

Theses (since 1990)
Russell P. Smithyman 1999. Environmental factors affecting the physiology and development of Blackleaf in Concord Grapevines.
Anne M. Morrell 1995. Heat shock-induced thermotolerance and expression of heat shock proteins in leaves and dormant buds of grape. PhD. Thesis

 

Publication Prior to 1980:
Refereed Journal

Kamienska, A., R.P. Pharis, R.L. Wample, C.C. Kuo and R.C. Durley. 1973. Gibberellins in conifers. The 8th Intern. Conf. of Plant Growth Substances, Tokyo, Japan. Aug. 26-Sept. 1. pg. 305-313.

Pharis, R.P., R.L. Wample and A. Kamienska. 1975. Growth, development and sexual differentiation in Pinus, with emphasis on the role of the plant hormone gibberellin. Management of Lodgepole Pine Ecosystems Conference. Symp. Proc. (D.M. Baumgartner ed.).

Pharis, R.P., S.D. Ross, R.L. Wample, and J.N. Owens. 1975. Promotion of flowering in conifers of the Pinaceae by certain of the gibberellins. Acta Horticultura 56. From a symposium held at College Park, MD (ed.) R. H. Zimmerman.

Wample, R.L., R.C. Durley, and R.P. Pharis. 1975. Metabolism of 3H-GA4 in vegetative shoots of Douglas fir. Physiol. Plant 35:273-278.

Wample, R.L., and J.D. Bewley. 1975. Proline accumulation in flooded and wilted sunflower and the effects of benzyladenine and abscissic acid. Can. J. Bot. 53:2893-2896.

Wample, R.L., and D.M. Reid. 1975. The effect of aeration on the flood-induced formation of adventitious roots and other changes in sunflower (Helianthus annuus L.). Planta. 127:263-270.

Wample, R.L. and D.M. Reid. 1978. Control of adventitious root production and hypocotyl hypertrophy of sunflower (Helianthus annuus L.) in response to flooding. Physiol. Plant 44:357-358.

Wample, R.L., and D.M. Reid. 1979. The role of endogenous auxins and ethylene in the formation of adventitious roots and hypocotyl hypertrophy in flooded sunflower plants (Helianthus annuus L.). Physiol. Plant 45:219-226.
 

Published Abstracts, Papers and Posters Presented (prior to 1980)

Pharis, R.P., S. Ross and R.L. Wample. 1974. Promotion of flowering in juvenile Douglas fir and Lodgepole pine by certain of the gibberellins, alone, in combination with each other, and with auxin. Third Forest Biology Workshop, Colorado State, Boulder, CO.

Wample, R. L., M. Black, and D.M. Reid. 1974. Greening and morphological changes in sunflower cotyledons as affected by cytokinins. West. Reg. Mtgs., Can. Soc. Pl. Physiol., Regina.

Wample, R.L. and D.M. Reid. 1975. The separation of water and anoxic effects on the morphology of flooded sunflower seedlings (Helianthus annuus L.). West. Sec. Can. Soc. Pl. Physiol.

Wample, R.L., and J.D. Bewley. 1975. Proline levels in sunflower (Helianthus annuus L. var. Russian) under several stress conditions. Prairie Universities Biol. Soc. Ann. Mtgs.

Wample, R.L. 1975. Endogenous ethylene and the flooding response in sunflower (Helianthus annus). Ann. Mtg. ASPP Plant Physiol. 56(2) Supp. No. 326.

Wample, R.L., and D.M. Reid. 1976. The role of ethylene in adventitious root formation in flooded sunflower. Ann. Mtg. ASPP. Plant Physiol. 57(5) Spp. No. 508.

Wample, R.L., and D.M. Reid. 1976. Auxin-ethylene interactions in the control of hypocotyl hypertrophy and adventitious root formation in flooded sunflower. Ann. Mtg. Can. Soc. Pl. Physiol.

Wample, R.L., and D.M. Reid. 1978. Separation of the control of adventitious root formation and hypocotyl hypertrophy. Ann. Mtg. ASPP. Plant Physiol. 61(4) Supp. No. 487.

 

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