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The Puget Sound American Viticulture Area (AVA), located west of the Cascade Mountain Range in Washington State, is a large and uniquely situated area with diverse topography and mesoclimates. Given the young age of the AVA, little formal information exists on the appropriate rootstock–scion combination in wine grapes (Vitis vinifera) for the region. This project reports on a series of rootstock trials from 2003 to 2007, which evaluated the influence of ‘420A Millardet et de Grasset’, ‘3309 Couderc’, ‘101-14 Millardet et de Grasset’ (all Vitis hybrids), and a self-rooted control on basic harvest metrics of the wine grape scion ‘Pinot noir clone 02A’. At the warmer site in Everson, WA, rootstocks had no effect on final juice harvest metrics measured by soluble solids, titratable acidity (TA), and pH. At the cooler site in Mount Vernon, WA, the use of rootstocks did not always influence soluble solids or pH but did reduce final harvest TA, a desired effect for the region that is typified by low sugar–high TA wines. Even with a reduction in TA in some rootstock–scion combinations, overall, TA remained at the upper end or above the range typically desired for many wine styles.
Abstract
‘Orcas’ is a fall pear (Pyrus communis L.) with size and flavor characteristics that make it suitable for use in home canning and drying and for fresh eating in season. In observations since 1971, trees and fruit of this cultivar appear to show good resistance to pear scab (Venturia pyrina).
Abstract
‘Rescue’ is an early pear (Pyrus communis L.) of large size with vivid orange-red blush and stripe over 40% to 90% of the fruit. It has potential not only for home orchard and garden plantings, but also as an attractive cultivar for roadside markets.