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Oregon ‘Pinot noir’ grape anthocyanin enhancement by early leaf removal Public Deposited

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https://ir.library.oregonstate.edu/concern/articles/9019s328x

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  • Complete cluster zone leaf removal of 'Pinot noir' was initiated at three separate pre-veraison growth stages (bloom, grain-pea size, and bunch closure) and maintained leaf free until harvest, for four growing seasons (2008-2011). Fruit anthocyanin composition was examined at harvest for the last two vintages (2010 and 2011) and compared to a control-no cluster zone leaf removal. Experiments were conducted at two commercially operating Oregon vineyards (site A = 420 rootstock/'Pinot noir' 115 scion and site B = 3309C rootstock/'Pinot noir' 777 scion). All clusters contained the five anthocyanins typically found in 'Pinot noir'. Leaf removal at bloom and maintained until harvest produced maximum anthocyanin accumulation in 'Pinot noir' grapes (site A = 85.24 mg/100 g and site B = 125.06 mg/100 g), compared to no leaf removal (control: site A = 57.91 mg/100 g and site B = 97.56 mg/100 g). Even leaf removal at bunch closure (last leaf removal initiation period) increased grape anthocyanin (site A 73.22 mg/bog and site B = 118.93 mg/100 g) compared to control, but total anthocyanins were lower than grapes from bloom leaf removal (first time period). Results differed slightly by vineyard site and rootstock/scion combination. Published by Elsevier Ltd.
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  • Lee, J., & Skinkis, P. A. (2013). Oregon 'pinot noir' grape anthocyanin enhancement by early leaf removal. Food Chemistry, 139(1-4), 893-901. doi:10.1016/j.foodchem.2013.02.022
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  • 139
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  • 43469
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  • This project was funded by USDA-Agricultural Research Service (ARS) CRIS number 5358-21000-041-00D, the Viticulture Consortium- West, and the Oregon Wine Board via the Unified Grant Management System.
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  • description.provenance : Made available in DSpace on 2013-06-17T17:21:44Z (GMT). No. of bitstreams: 1 SkinkisPatriciaAHorticultureOregonPinotNoir.pdf: 204466 bytes, checksum: 1975fbf47b045edf68802dc243c24f2d (MD5) Previous issue date: 2013-02-18
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-06-17T17:21:44Z (GMT) No. of bitstreams: 1 SkinkisPatriciaAHorticultureOregonPinotNoir.pdf: 204466 bytes, checksum: 1975fbf47b045edf68802dc243c24f2d (MD5)
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-06-17T17:18:36Z No. of bitstreams: 1 SkinkisPatriciaAHorticultureOregonPinotNoir.pdf: 204466 bytes, checksum: 1975fbf47b045edf68802dc243c24f2d (MD5)

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