Sonoma, Mendocino, and Lake Counties
University of California Agricultural and Natural Resources
email:
Integrated Vineyard Systems Advisor
Sonoma, Mendocino, and Lake Counties
University of California Agricultural and Natural Resources
email:
My name is Christopher Chen, and I was hired in January 2021 as the University of California Cooperative Extension Integrated Vineyard Systems
Advisor for Sonoma, Mendocino, and Lake counties. My background in agricultural and plant sciences began at UC Davis while pursuing a double
-major bachelor's degree in horticulture/agronomy and economics. During this time, I was exposed to California plant identification and taxonomy,
plant physiology, principles of soil science, statistical analysis of data, and techniques and practices in general agricultural. Upon graduating with a
B.S. in Agronomy and a B.A. in Economics I continued at UC Davis to pursue a Master of Science degree in agronomy with specialization in
viticulture followed by a Ph.D. in the same discipline. Throughout the past six years of graduate studies, I have focused solely on viticulture research and
practices at the University of California Davis. While in the master's program at UC Davis, I researched the efficacy of shade nets as heat-damage
reduction tools for wine grapes at the UC Oakville Research Station in Napa Valley. Throughout this period, I also assisted in numerous field-based
projects across California ranging from Delano and Paso Robles to Napa, Sonoma, and Mendocino counties. During my doctoral degree I tested the
salinity tolerance of wild and cultivated grapevine rootstocks stored at the UC Davis germplasm collection. In 2021, I graduated with a Ph.D. in
Horticulture and Agronomy with specialization in Viticulture.
The interest I have in grapevines stems from both scientific curiosity and a personal appreciation. To me, vineyards are one of the most aesthetically
appealing cropping systems we have developed. The long and intertwined history of wine and humanity is entrenched in societies around the world
and is a study in cross species development. My scientific interests with grapevines are related to abiotic stress tolerance, particularly with respect to
excess heat and extended drought. However, the persistent and underlying goal for my projects is to investigate topics that are practically useful to
wine grape growers and to put out quality work for UC ANR. In my personal life I greatly enjoy venturing across California seeking out excellent hikes
and playing guitar during my down time. My five-year old Australian Shepherd is a great companion for my outdoor adventures, and we are typically
accompanied by my partner.
During my time involved with the wine and grape industry I have enjoyed meeting and speaking with many experienced and knowledgeable professionals. I have learned that talking with the people that do the work is the best way to learn about any industry. Through my training and studies at UC Davis I have gained the background knowledge and terminology to continue learning new concepts and practices in viticulture. However, there is always more to learn. I am continuously happy to learn from experts in my region and collaborate with my clientele and local organizations excited to learn more. As the UCCE vineyard advisor for Sonoma, Lake, and Mendocino counties I have to received many good suggestions on how to develop my program in the region. I would like to hear from as many growers and industry professionals as possible about what they would like to see my program develop into. Starting in a new role is always a challenge, but I am thankful to have the advice and guidance of experienced peers as I address new concerns and develop productive connections in and around northern California.
I am grateful to be able to work with the community members and organizations that make this region of California great. Please look out for newsletters and events through UC ANR. If you are interested in receiving newsletters from UCCE on vineyard related topics or would like to chat, you can contact me via email at: codchen@ucanr.edu and I will help however I can.
Christopher Chen
UC Cooperative Extension Advisor
Sonoma, Mendocino, and Lake Counties
email:
Ph.D., University of California, Davis; September 2021
Major: Horticulture and Agronomy
Specialization: Viticulture and Enology
M.Sc., University of California, Davis; June 2018
Major: Horticulture and Agronomy
Specialization: Viticulture and Enology
B.Sc., B.A., University of California, Davis; June 2016
Major #1: Environmental Horticulture and Urban Forestry
Major #2: Economics
Practical research related to improving vineyard system climate resilience and adaptability to changing environmental conditions. This is research
that is easily understood, cost efficient, and fits within the existing framework of vineyard cropping systems. This work includes elucidation of
climate-adaptive mechanisms at the plant and whole-vineyard levels and may include: grapevine mechanisms for drought tolerance and recovery,
limiting damage from sun exposure, whole-vineyard resource use efficiency, climate-resilient vineyard design, cultivar selection for predicted changes
in regional climates, and more.
University of California Cooperative Extension Advisor
Agricultural and Natural Resources
University of California, Davis
January 2022 - Current
This position allows for the exploration of practical research topics relevant to cultivation of wine grapes in a production-focused, vineyard system.
Research in this program has been heavily focused on development of climate-adaptive vineyard systems and identification of grape rootstock and
scion cultivars tolerant to frequent and unexpected abiotic stress events. I serve as the Prinicple Investigator, technician, supervisor, safety
coordinator, grant writer & reporter, and data analyist for all projects related to this program.
Ⅰ. Collected and analyzed data from self-designed experiments for purpose of practical climate-adaptation in vineyards
• Experimental Design and Setup
• Establishment of collaborative relationships with clientele and site managers
• Identification of applicable instrumentation for specified objectives
• Deployment of theoretical concepts in applied settings
• Treatment application and sample collection
• Sample Processing
Ⅱ. Generation of data through laboratory analysis, and/or the process of:
• Determination of berry phenolic composition and development via titration and other means
• Physiological responses of grapevines to drought and extreme heat using pressure chambers, PSS, and similar tools
• Environmental data collection via in situ weather stations, moisture probes, or other devices
Ⅱ. Dissemination of acquired information and research findings to students and viticultural professionals
• Summarization of findings from relevant studies by location and grape producer needs
• Creating publicly-accesible materials and references available to all
• Development and organization of educational events to met Cooperative Extension objectives
• Providing educational opportunities to college-level students and an in-person course
Ⅲ. Exposure and/or further experience with:
• Vineyard design, establishment, maintenance, management, and repair
• Statistical data analysis using R
• Teaching statistical data analysis using R
• Experimental design and maintenance
• Sample preparation for varied analyses
• Educational outreach and programming
• Training in-field or laboratory technicians in relevant SOPs
Ph.D. Candidate
Department of Viticulture & Enology
University of California, Davis
June 2018 - September 2021
Supervisor: Dr. M. Andrew Walker
Research focused on elucidating mechanisms of sodium chloride tolerance in Vitis spp. and development of rootstock breeding methods for rapid and
quantitative screening of many collections of novel genetic material for salt-tolerant phenotypes in large populations. Responsibility for own progress
with regular reporting to supervisors.
Ⅰ. Collected data from self-designed experiments for purpose of developing breeding
methodology for salt-tolerance screening procedures:
• Experimental Design and Setup
• Applicable Instrumentation and Applied Understanding of Theoretical Concepts
• Treatment Application and Sample collection
• Sample Processing
Ⅱ. Generation of data through laboratory analysis, and/or the process of:
• Silver-Ion Titration
• Determination of chloride concentrations in different plant tissues
• Scanning Electron Microscopy for Subcellular Differentiation
Ⅲ. Exposure and/or further experience with:
• Plant propagation from hardwood and herbaceous cuttings
• Statistical data analysis using R
• Proper experimental design and maintenance
• Sample preparation for complex analyses
• Viticultural management practices
• Vineyard design and maintenance
Graduate Student Researcher
Department of Viticulture & Enology
University of California, Davis
June 2016 - June 2018
Supervisor: Dr. Sahaap Kaan Kurtural
Independent and cooperative research focused on abiotic stress responses in Vitis vinifera and mechanization of commercial wine grape
vineyards of several premier viticulture regions in California. Organized and participated in field and laboratory work to analyze and
determine effects of differing, scientific treatments on wine grape yield and quality.
Ⅰ. Collected industry-standard data from field trials for, but not limited to:
• Crop coefficients, Vine water status, Irrigation scheduling
• NDVI, Crop Sensing and Imaging, Site logistics
• Berry sampling for quality, Yield predictions and Final yield
Ⅱ. Generation of data through laboratory analysis, and/or the process of:
• Berry phenolic: biosynthesis, composition, and temporal development
• Determination of quality and concentration of flavonoid classes.
• Small-batch, experimental wine making
Ⅲ. Exposure and/or further experience with:
• Basic statistical data analysis using R
• Proper experimental design and maintenance
• NDVI and Crop Sensing
• Harvest of wine-grapes
• Basic management practices of viticulture
Student Research Assistant
Department of Plant Sciences
University of California, Davis
January, 2014 - June, 2016
Supervisor: Dr. Valerie T. Eviner
Research assistant position focused on understanding plant and soil community responses to climate change, grazing &management and nutrient
availability in California annual grasslands.
• Performed plant-soil processing methods including root extraction, biomass
sampling and seed sorting.
• Experience operating specialized ecological processing equipment and seed
imaging software WinSeedle.
•Knowledgeable in ecological field sampling methodology including California
grassland species identification and vegetation surveys.
•Performed data analysis using JMP statistical software.
•Trained supervisors on seed imaging software procedures.
Project Assistant
Department of Plant Sciences
University of California, Merced
April 2015 - July 2015
Supervisor: Erin Dickman
Assisted with Master degree thesis research investigating physiological adaptations over four decades to climate change in cut-leaf
monkey flower in the Sierra Nevada mountain range.
• Independently monitored monkey flower growth experiment recording regular
phenotypic measurements.
• Communicated results to supervisor via bi-monthly meetings.
• Performed regular maintenance and monitoring of greenhouse experiment,
including watering, segregation, and pruning.
• Experience troubleshooting and problem solving in experimental greenhouse settings.
Research Internship
Department of Plant Sciences
University of California, Davis
January 2015 - March 2015
Supervisors: Dr. Valerie T. Eviner, Joanne Heraty
Collaborated and developed independent internship project analyzing litter removal and accumulation post-drought in Californian grasslands.
• Collected regular above and belowground biomass measurements in-field.
• Surveyed and identified vegetation using Daubenmire classifications.
• Researched and maintained records of precipitation and temperature events for analysis.
• Used statistical software package JMP to analyze results.
• Communicated findings to supervisors.
Integrated Vineyard Systems Advisor 
Sonoma, Mendocino, Lake Counties
University of California, ANR
January 2022 - Current
Serve as the vineyard farm advisor for Sonoma, Lake, and Mendocino Counties of northern California. University of California Cooperative
Extension outreach and research.
• Organize outreach events and materials for grape growers in northern California
• Conduct research in sustainable vineyard design and management; drought focused
• Engaging and educating the grower community in up-to-date research advancements
Adjunct Faculty – Part Time
Mendocino College
Ukiah, CA
January 2023 - Current
This teaching position is responsible for two courses per academic year focused on the introduction of viticulture and viticultural concepts to students at Mendocino College. One of the two courses is now UC-transferrable. Some responsibilities include:ocino Counties of northern California.
• Assigning and grading classwork
• Teaching undergraduate students
• Community outreach and education
• College-level course design and lesson planning
• Courses
– AGR 211 – Introduction to Viticulture (UC Transferrable)
– AGR 112 – Viticultural Practices
Graduate Studies Admissions Committee Member
Horticulture and Agronomy Graduate Group
University of California, Davis
January 2020 - April 2020
Student committee member representing graduate student opinions on new applicants to the horticulture and agronomy graduate group; served in
conjunction with faculty committee members.
• Socratic discussion with committee members on merit of new applicants
• Review and commentary on applications of potential students
• Overall referral to admit, deny, or reapply for each applicant
Resident Advisor
Student Housing Services
University of California, Davis
September 2013- June 2014
In-house advisor position responsible for facility management, resident welfare and safety, community building and resource referrals.
• Trained in emergency response, safety.
• Experience in conflict resolution, incident reporting, new resident resource referrals.
Orientation Leader
Student Housing Services
University of California, Davis
May 2013- August 2013
Organized and led orientation geared towards new student graduation requirements, UC system resources and class registration navigation.
• Experience performing academic advising, conflict resolution, communicating
information to a large audience.
Valenzuela F., Reineke D., Leventini D., Chen C., Barrett-Lennard E., Colmer T., Dodd I., Shabala S., Brown P., Bazihizina N. (2022). Plant responses to heterogeneous salinity: agronomic relevance and research priorities. Ann Bot.
Link: Valenzuela et al. 2022 - Publication
Martínez-Lüscher, J., Chen, C. C. L., Brillante, L., & Kurtural, S. K. (2020). Mitigating Heat Wave and Exposure Damage to 'Cabernet Sauvignon' Wine Grape with Partial Shading Under Two Irrigation Amounts. Frontiers in Plant Science, Frontiers in Plant Science , Vol. 11, p. 1760. Retrieved from https://www.frontiersin.org/article/10.3389/fpls.2020.579192
Link: Martínez-Lüscher et al. 2020 - Publication
Martínez-Lüscher, J., Chen, C. C. L., Brillante, L., & Kurtural, S. K. (2017). Partial Solar Radiation Exclusion with Color Shade Nets Reduces the Degradation of Organic Acids and Flavonoids of Grape Berry (Vitis vinifera L.). Journal of Agricultural and Food Chemistry, 65(49), 10693‐10702. https://doi.org/10.1021/acs.jafc.7b04163
Link: Martínez-Lüscher et al. 2017 - Publication
Please refer to my downloadable Cirriculum Vitae on the "Resume/CV" tab above for an updated list of presentations and public-facing materials. You may also visit my UC ANR Resource Page by following this link:
Chen, C. C. L., Romero, N., & Walker, M. A. (2019). Rapid Screening for Salt-stress Tolerance Through Chloride-Ion Accumulation in Leaves of Wild Vitis Spp. Rootstocks. American Society for Enology and Viticulture (2019).
Chen, C. C. L., Brillante, L., & Kurtural, S. K. (2018). Partial Solar Radiation Exclusion, Not Applied Water Amounts Mitigate Berry Flavonoid Content and Organic Acids in Grapevine (Vitis vinifera L.) Berry. American Society for Enology and Viticulture (2018).
Chen, C. C. L., Martínez-Lüscher, J., Brillante, L., & Kurtural, S. K. (2017). Shifts in Proanthocyanidin Composition of Cabernet Sauvingon is Modulated by Selective Cluster Shading and Water Deficits. American Society for Enology and Viticulture (2017).
Chen, C. C. L., Powdery Mildew Field Day ‐ A Cooperative Extension Resource for Changing Conditions
Chen, C. C. L., Don’t Be Salty ‐ How Irrigation, Soil Health and Climate Affect Vineyard Salinity
Chen, C. C. L., Wine Without Water strategies for farming grapes in California drought
Chen, C. C. L., Youtube Channel
Link (click image): 
Link: Chen et al. 2018 - ASEV Conference Poster
Link: Chen et al. 2018 - ASEV Conference Poster
Link: Chen et al. 2017 - ASEV Conference Poster
Popular Articles
Link: Powdery Mildew Field Day (Wine Business Monthly - January 2024) - Article
Link: Don’t Be Salty (Wine Business Monthly - November 2023) - Article
Link: Wine Without Water (UC ANR - January 2022) - Newsletter
Videos and Media
Link: Introductions to Viticulture - Youtube
Skills
| Skill | Trained by | Year Trained |
| Basic Programming | Self | 2016-current |
| Data Analysis | Dr. E. Laca; and Self | 2017 |
| Document Processing | Dr. J. Martínez-Lüscher | 2017 |
| Laboratory Processes | Dr. J. Martínez-Lüscher | 2017-2020 |
| Experimental Design | Dr. D. Runcie | 2017 |
| Grapevine Identification | Dr. M.A. Walker | 2018-2020 |
| GIS/mapping | Self | 2018-2019 |
| Grapevine Pests/Diseases | Dr. M.A. Walker | 2018-2020 |
| Presenting and Outreach | Self | 2016-current |
Relevant Coursework
University of California Davis
| Course | Instructor | Year Taken |
| Statistics | Dr. E. Anderes | 2013 |
| Plant Physiology | Dr. M. Marrush | 2014 |
| Statistical Economics | Dr. M. Siegler | 2014 |
| Plant Propagation | Dr. R. Evans | 2014 |
| Plant Pathology | Dr. B. Falk | 2014 |
| Urban Irrigation | Dr. M. Grismer | 2015 |
| Woody Plant Management | Dr. A. Volder | 2015 |
| Natural Resource Economics | Dr. C. Lin | 2015 |
| Population Genetics | Dr. D. Neale | 2016 |
| Plant Ecology | Dr. M. Rejmanek | 2016 |
| Plant Genetics | Dr. P. Gepts | 2016 |
| Soil Science Principles | Dr. R. Southard | 2016 |
| Pest Management | Dr. L. Godfrey | 2016 |
| Experimental Design in R | Dr. D. Runcie | 2017 |
| Sustainable Vineyard Development | Dr. D. Smart | 2017 |
| Multivariate Modeling | Dr. E. Laca | 2017 |
| Soil Physics | Dr. M.M. Kandelous | 2018 |
| Soil Chemistry | Dr. S. Parikh | 2019 |
| Plant Mineral Nutrition | Dr. P. Brown | 2019 |
Links to Certifications
Online Trainings
>LaTeX Training (online): Certification.
>R: ggplot2 (online): Certification.
>R: statistics intensive (online): Certification.
>R: Leaflet (interactive mapping) (online): Certification.
>R: basics (online): Certification.
