Post-Frost Pruning Does Not Impact Vine Yield and Berry Composition in Young Grapevines

Author:

Kar Suraj12ORCID,Clark Ricky W.12ORCID,Ivey Ian T.1,DeShields Joseph B.12ORCID,Cusimano Jeremy3,Levin Alexander D.12ORCID

Affiliation:

1. Southern Oregon Research and Extension Center, Oregon State University, 569 Hanley Rd, Central Point, OR 97502, USA

2. Department of Horticulture, Oregon State University, 2750 SW Campus Way, Corvallis, OR 97331, USA

3. Cascadia Ag Research, P.O. Box 10731, Eugene, OR 97404, USA

Abstract

Spring frost is a perennial and widespread problem across many cool climatic and high-elevation winegrowing regions of the world. Vitis vinifera L. cv. Pinot noir is an early budding cultivar; thus, it is particularly susceptible to late-spring frost damage. In late April 2022, an advective frost event occurred throughout Western Oregon winegrowing regions and subsequently damaged a substantial number of commercial vineyards. Growers often are unsure of how to manage grapevines after a frost event. Limited research has shown little-to-no effect of pruning vs. non-pruning strategies on vine yield and productivity. In addition, pruning a frost-affected vineyard incurs additional labor costs that may offset the cost–benefit balance for the grower. Therefore, in this experiment, the effect of two different post-frost pruning treatments (cane pruning and spur pruning) on vine yield, berry composition, and vine vegetative growth were tested. No effect of post-frost pruning treatments on vine yield, berry composition, and vine vegetative characteristics was observed. Cluster numbers, cluster weights, and berries per cluster only differed between cane- vs. spur-pruned vines. Therefore, leaving frost-affected vines alone and a scaled-back vineyard management practice could be practical for economic reasons.

Publisher

MDPI AG

Reference28 articles.

1. Snyder, R.L., and Melo-Abreu, J. (2005). Frost Protection: Fundamentals, Practice and Economics, Food and Agriculture Organization of the United Nations.

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3. Barlow, S. (2010). Improved Frost Management in the Goulburn & Yarra Valleys, The University of Melbourne. Final Report to Grape and Wine Research and Development Corporation, Project Number RT 06/04-1.

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5. Climate Change Impacts and Adaptations of Wine Production;Sgubin;Nat. Rev. Earth Environ.,2024

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