Download or read book Winter Injury to Grapevines and Methods of Protection written by and published by . This book was released on 2007 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protecting Grapevines from Winter Injury written by and published by . This book was released on 2008 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Winegrape production in the Pacific Northwest has expanded into areas where low winter temperatures periodically cause cane damage or death. In the Walla Walla Valley, for example, minimum temperatures plummeted to below -20°F for several days in 1996 and 2004, killing most exposed canes. Cane temperatures most certainly remained below 0°F during this time. If vines are grown on their own roots (i.e., not grafted), regrowth and training of new canes from below-ground plant parts is possible. Fruit and wine production is reduced, however, during the time required to retrain the canes. Regrowth of 'Merlot' canes is especially problematic, as new canes tend to be stunted and nonvigorous. Canes can be protected from freeze damage by burying them or covering them with mulch. This publication describes three systems that may help prevent injury from winter freezes."--Page [1].

Download or read book Methods to Protect Trees from Winter Injury written by William Irvin White and published by . This book was released on 1933 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring Frost Injury of Grapevines and Protection Methods written by Imed Dami and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Winter Injury of Grapes written by Fred Elmer Gladwin and published by . This book was released on 1917 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developing Novel Methods to Mitigate Freezing Injury in Grapevines written by Hongrui Wang and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the world total grape acreage remains stable in recent years, growers have been eager to expand the planting of the cold sensitive Vitis vinifera cultivars as the world consumption of vinifera wine reveals an increasing trend. However, the expansion of the vinifera planting is limited by environmental constrains, including heat, drought and cold. In the Eastern U.S., freezing temperatures in winter and late spring frosts are, by far, the most limiting factors constraining the further development of the grape industry. To address these issues, novel methods and products have been developed in recent years to mitigate these cold-related injuries in grapevines. Previous studies indicate that the foliar application of exogenous S-abscisic acid (exo-ABA) enhances the freezing tolerance (FT) of grapevines. However, the underlying mechanism remains unknown. We investigated exo-ABA’s impact on grapevine physiology and bud sugar composition by conducting a two-year greenhouse study using potted Cabernet franc (Vitis vinifera) grapevines. Compared with control, exo-ABA decreased stomatal conductance after hours and accelerated the transition of grapevine physiology after weeks by increasing the depth of dormancy, decreasing bud water content and increasing bud FT. Exo-ABA also induced further accumulation of raffinose family oligosaccharides (RFOs) by effecting RFO metabolism. This mechanism involves the enhancement of the expression of raffinose synthase and galactinol synthase genes and the increase of essential components (sucrose and myo-inositol) and precursor (galactinol) of RFO biosynthesis pathway. The second part of this thesis addressed the issue of spring frost injury by testing newly developed grapevine budburst delaying products, including Amigo oil, ABA and FrostShield. A two-year study, which involved two field experiments and one growth chamber experiment, was conducted to evaluate different products’ efficacy on delaying budburst and their impacts on grapevine vegetative and reproductive growth, yield and fruit quality. Results reveal that, FrostShield outperformed Amigo oil and ABA by providing longer and more consistent delay without affecting vegetative and reproductive growth, yield components or fruit composition. FrostShield’s delay of budburst also postponed grapevine phenology, which might generate more benefits such as superior FT in the growing season and more desirable harvest date. Overall, the findings presented in this thesis not only answer specific question of ABA’s role during grapevine cold acclimation, but also directly provide valuable information for vineyard practices to manage spring frost, which will help develop novel strategies to prevent freezing injuries in vineyards and facilitate the expansion of the grape industry in the cold regions of the U.S.

Download or read book The Grape Grower s Handbook written by Ted Goldammer and published by . This book was released on 2018 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Updated and revised to keep pace with developments, the third edition of Grape Grower's Handbook: a Guide to Viticulture for Wine Production is meant to be a stand-alone publication that describes all aspects of wine grape production. The book is written in a nontechnical format designed to be practical and well-suited for vineyard applications."--Back cover.

Download or read book Assessment of Winter Injury of Grapevines in Oregon 1991 written by Bernadine Cornelia Strik and published by . This book was released on 1992 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biogeosciences and Wine the Management and Environmental Processes that Regulate the Terroir Effect in Space and Time written by Simone Priori and published by Frontiers Media SA. This book was released on 2021-08-02 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Winter Injury in Grapevine Trunks written by John H. Paroschy and published by . This book was released on 1978 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluating Cultural Practices for Recovery from Cold Damage in Grapevines written by Thomas Mason Todaro and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2015 and 2016, another field study (Chapter 3) was conducted with three cultivars, Cabernet franc, Pinot gris, Pinot noir grown in a commercial vineyard to evaluate various combinations of training systems, pruning types (cane and spur), and trunk and cane numbers. Spur pruned vines consistently had the highest bud, shoot, and cluster counts resulting in the highest yields. Cane pruned vines had the most optimum leaf area to crop weight ratio and produced the most mature fruit; however, they required the longest retraining time. Vines trained with the fewest renewed trunks in year 1 had the largest trunk diameter in year 2, which is not desirable. It is concluded that trunk quality (morphology) and quantity (number) is critical for vine rehabilitation after winter damage, and the fan training system produced the most optimum renewed trunks. Practically, grape growers will benefit from this research by implementing the best practices for trunk renewal by training all shoots (suckers) using a fan system in year 1, and selecting and retaining 4 trunks and 4 canes with optimum size and removing “bull” canes in year 2. This new knowledge will advance our understanding of FT by developing new strategies to mitigate freezing damage in grapevines. Ultimately, the findings from this research will enhance the economic and environmental sustainability of grape production in Ohio.

Download or read book Wine Science written by Ronald S. Jackson and published by Academic Press. This book was released on 2020-04-04 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wine Science: Principles and Applications, Fifth Edition, delivers in-depth information and expertise in a single, science-focused volume, including all the complexities and nuances of creating a quality wine product. From variety, to the chemistry that transforms grape to fruit to wine, the book presents sections on the most important information regarding wine laws, authentication, the latest technology used in wine production, and expert-insights into the sensory appreciation of wine and its implications in health. This book is ideal for anyone seeking to understand the science that produces quality wines of every type. Presents thorough explanations of viticulture and winemaking principles from grape to taste bud Addresses historical developments in wine production, notably sparkling wines Provides techniques in grapevine breeding, notably CRISPR Compares production methods in a framework that provides insights into the advantages and disadvantages of each

Download or read book Protecting Trees and Shrubs Against Winter Damage written by Bert T. Swanson and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Proposals Received and Awards Made and Final Reports for Grant Year written by Viticulture Consortium, East and published by . This book was released on 2006 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Science of Grapevines written by Markus Keller and published by Academic Press. This book was released on 2015-01-19 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science of Grapevines: Anatomy and Physiology is an introduction to the physical structure of the grapevine, its various organs, their functions and their interactions with the environment. Beginning with a brief overview of the botanical classification (including an introduction to the concepts of species, cultivars, clones, and rootstocks), plant morphology and anatomy, and growth cycles of grapevines, The Science of Grapevines covers the basic concepts in growth and development, water relations, photosynthesis and respiration, mineral uptake and utilization, and carbon partitioning. These concepts are put to use to understand plant-environment interactions including canopy dynamics, yield formation, and fruit composition, and concludes with an introduction to stress physiology, including water stress (drought and flooding), nutrient deficiency and excess, extreme temperatures (heat and cold), and the impact and response to of other organisms. Based on the author’s years of teaching grapevine anatomy as well as his research experience with grapevines and practical experience growing grapes, this book provides an important guide to understanding the entire plant. Chapter 7 broken into two chapters, now "Environmental Constraints and Stress Physiology and Chapter 8 "Living with Other Organisms" to better reflect specific concepts Integration of new research results including: Latest research on implementing drip irrigation to maximize sugar accumulation within grapes Effect of drought stress on grapevine’s hydraulic system and options for optimum plant maintenance in drought conditions The recently discovered plant hormone – strigolactones – and their contribution of apical dominance that has suddenly outdated dogma on apical dominance control Chapter summaries added Key literature references missed in the first edition as well as references to research completed since the 1e publication will be added

Download or read book Wine East written by and published by . This book was released on 2007 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluating the Effects of Vineyard Management Strategies on Cold Stress in Wine Grapes written by Maria Suk Smith and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold stress is among the major limiting factors for wine grape production in Pennsylvania. Post-budburst spring frost events and dormant mid-winter low temperatures can cause freeze injury of grapevine vegetative and reproductive tissues resulting in partial or total crop loss. Vineyard management practices, such as site and cultivar selection and crop load management, can impact vine susceptibility to freeze stress through avoidance or tolerance mechanisms. To understand how different practices influence vine susceptibility to freeze injury, it is crucial to analyze plant physiological adaptation and response mechanisms.Three studies utilizing young potted vines grown outdoor and mature vineyard plantings were conducted to evaluate the role of cultivar selection and crop load management in reducing the risk of freeze injury during the dormant season or post-budburst. Each study evaluated different aspects of vineyard practices and the relationship to freeze injury. In the first study, two Vitis species with different genetic parentage and mid-winter freeze tolerance were compared for hydraulic response and recovery to post-budburst freeze injury. Stem xylem anatomical traits of each species were measured to determine their role in vine response and recovery to freeze injury. The second and third studies compared a novel crop load management technique, early leaf removal (ELR), to a more traditional yield regulation practice, cluster thinning (CT), on two high-yielding cultivars, Vitis hybrid Chancellor and V. vinifera Grner Veltliner. In each of these two studies, the timing (Grner Veltliner; trace bloom versus fruit set) and intensity (Chancellor; low versus high) of ELR and CT were compared to an un-defoliated, un-thinned control. One of the objectives was to understand how manipulating vine crop load (i.e., carbohydrate source-sink ratio) would influence leaf photosynthetic capacity (Grner Veltliner) and overwinter starch concentration in storage tissues (Chancellor) and how those factors relate to bud winter freeze tolerance. Additionally, the impact of crop load management practices on commercially important production parameters, such yield components, fruit ripeness, wine composition and consumer sensory perception (Chancellor), and economic impacts were assessed. In the first study, short-term hydraulic response (within 48 hours) to a temperature-controlled post-budburst freeze stress differed by species. Species differences in stem xylem anatomical traits (e.g., vessel frequency, vessel grouping) supported the contrasting hydraulic response. The long-term seasonal recovery from freeze injury, however, was similar between species despite differences in anatomical traits. In the second and third study, ELR had a greater impact on bud freeze tolerance than CT only during vine acclimation in Grner Veltliner and during mid-winter in Chancellor; however, all crop load treatments positively influence starch concentration in perennial tissues. Furthermore, the vine response to ELR depended on the percentage of leaf area removed, which was higher in Chancellor than Grner Veltliner at the same phenological stage. Overall, our results pertaining to freeze injury suggest a continued need for exploring mechanisms behind vine response to vineyard management practices and vine traits that benefit response and recovery to cold stress.