U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Horticultural Crops Research Unit: Corvallis, OR
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Other
                        History
                                    Useful Links
                    HortHappenings News PageSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Corvallis, Oregon Horticultural Crops Research Unit Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Lee, Jungminitem
                                            Tarara, Julie
  Submitted to: Oregon Wine Research Institute
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 12/15/2010
                                    Publication  Date: 2/11/2011
                                    Citation: Lee, J., Tarara, J.M. 2011. Vineyard management practices and the quality of grapes and grape products in the Pacific Northwest - USDA-ARS CRIS (Current Research Information System) project. Oregon Wine Research Institute Viticulture and Enology Research Colloquium. Meeting Booklet.Interpretive Summary:
                                Technical Abstract: One of our three program goals for this USDA-ARS-CRIS project is to determine the effects of vineyard and vine microclimate (sunlight, temperature, humidity, etc) upon fruit development, vine productivity, and fruit quality, particularly phenolic compounds. Plant phenolics are important due to their contribution to quality and organoleptic properties in the fresh and processed products via appearance, taste, and texture. Using a model red grape variety ('Merlot'), we demonstrated the negative effects of short exposure to extreme high fruit temperatures on classes of compounds associated with grape and wine quality: anthocyanins and flavonol-glycosides. Knowledge of natural temperature fluctuations in vineyards, and their effects on grape quality, led to practical recommendations that enable growers in warm grape-growing regions to adjust their vineyard management practices to maintain an environment conducive to the highest quality fruit. We continue to fine-tune our investigation into how berry temperatures and / or solar radiation impacts grape primary and secondary metabolites.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov