Effects of Cover Crop Management on Vine Development and Fruit Quality of Pinot noir - Year 1 Report Public Deposited

http://ir.library.oregonstate.edu/concern/technical_reports/k0698880d

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Poster Presentation Presented at the 2008 Oregon Wine Industry Symposium.

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  • Vegetative cover crops maintain the sustainability of vineyard systems through managing soil water, preventing erosion, regulating vine growth, and providing competition with weeds (Bugg 1996). Cover crops may further be utilized to increase available nutrients and organic matter, as traction for labor operations, and to increase vineyard biodiversity and microbial activity (Ingels 2005). Research on cover cropping has focused on optimization of species to vineyard operations, while little work has been done in management of cover crops. In the North Willamette Valley, growers may use cover crops along with irrigation to manage conditions of high water availability in the spring followed by low water availability in the summer. Water competition from cover crops early in the growing season has been shown to produce a smaller, less vigorous, canopy (William, 2003), which in turn reduces shading and disease pressure. Reduced vine vigor has further been associated with increased berry anthocyanins (Monteiro and Lopes 2007) and polyphenols (Cortell et al. 2005). The cover crop may be mowed or tilled-in at a strategic time in the growing season, such as fruit set, in order to reduce competition and add biomass and nutrients into vineyard soils. Three cover crop management regimes [complete tillage of cover, alternate row tillage, and solid cover] were evaluated at two commercial Willamette Valley vineyard sites in 2007. One of the sites further compared the interaction of drip irrigation with cover crop management regimes. Vegetative vigor was monitored throughout the growing season, as were winegrape parameters such as berry weight, Brix, and juice pH. At harvest, YANC and total berry skin phenolics and anthocyanins were also determined. This study will evaluate how varying cover crop management tactics affect vine vigor and fruit quality in the North Willamette Valley.
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  • Fredrikson, L., & Skinkis, P. (2008). Effects of Cover Crop Management on Vine Development and Fruit Quality of Pinot noir - Year 1 Report.
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  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-02-03T19:51:30Z No. of bitstreams: 1 Cover Crop Study - Skinkis 2008.pdf: 851963 bytes, checksum: d8c8ad0baa7bd69903b2707eefd38e08 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-02-03T19:51:47Z (GMT) No. of bitstreams: 1 Cover Crop Study - Skinkis 2008.pdf: 851963 bytes, checksum: d8c8ad0baa7bd69903b2707eefd38e08 (MD5)
  • description.provenance : Made available in DSpace on 2016-02-03T19:51:47Z (GMT). No. of bitstreams: 1 Cover Crop Study - Skinkis 2008.pdf: 851963 bytes, checksum: d8c8ad0baa7bd69903b2707eefd38e08 (MD5) Previous issue date: 2008

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