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Creator:: Candolfi-Vasconcelos, M. Carmo
Abstract:: The advent of phylloxera in Oregon led to an urgent need for the evaluation of the viticultural characteristics of rootstocks with the potential for adaptation to Oregon, a cool climate grape production zone with low pH soils. The research reported here is a long-term study on the effect of rootstock...
Resource Type:: Technical Report
Full Text:: , and fruit composition. This final report summarizes the data of seven years . The vines in the "old

Creator:: Shaffer, Ray and Candolfi-Vasconcelos, M. Carmo
Abstract:: Vineyard acreage in Oregon continues to increase at a rapid pace. In the past two years alone 1600 acres of new vineyard land have been planted (Rowley et al., 2000). Much of this has been on phylloxera-resistant rootstocks. This practice is strongly encouraged, since it is the only practical way...
Resource Type:: Technical Report
Full Text:: opportunity to control vine vigor and affect fruit composition. Unfortunately there is little data specific to

Creator:: Taylor, Patrick, Candolfi-Vasconcelos, M. Carmo, and Baham, John
Abstract:: Extensive information on rootstock resistance to lime is available since it has been one of the major selection criteria in Europe an rootstock breeding programs. Information regarding the performance of rootstocks in acidic soils however, is not so prevalent. Differences in genotype tolerance to high acidity maybe related to different...
Resource Type:: Technical Report
Full Text:: of uptake, or a better adaptation to excess (or deficient) levels of nutrients . Data collected this

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell
Abstract:: Survey data compiled in 1995 showed that plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. In over 37% of the samples collected, population densities of Xiphinema wnericanwn (dagger nematode) and Criconenw1la xenoplax (ring nematode) were greater than levels known...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1996 - 1997 Pathogenicity and Management of Plant

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell E.
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85 % of Oregon vineyards. Population densities of Xiphinema americanun (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause > 10-25% loss in California vineyards. However,...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1997 - 1998 Pathogenicity and management of plant

Creator:: McAuley, Michael and Candolfi-Vasconcelos, M. Carmo
Abstract:: With new vineyard planting and the replanting of older vineyards on phylloxera-resistant rootstock on the rise, grape growers are looking for rootstocks that are good fits for a particular site and management style. Making an informed decision on rootstocks before planting can help create a vineyard that will be manageable...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1998 - 1999 Evaluation of varieties, clones and

Creator:: Schonenberger, Patrik M., Candolfi-Vasconcelos, M. Carmo, and Mallory-Smith, Carol
Abstract:: Soil and vineyard vegetation management are tools that may be used to create stable growing conditions for the grapevine roots and to preserve soil fertility for high grape quality in future years. The use of cover crops is commonly practiced in viticultural areas where precipitation exceeds 600-700 min (24-28 in)...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1997 - 1998 Integrated Production: Increasing and

Creator:: Pinkerton, Jack and Candolfi-Vasconcelos, M. Carmo
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. Population densities of Xiphinema americanum (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause 10-25% loss in California vineyards. However, these nematode...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1998 - 1999 Pathogenicity and Management of Plant

Creator:: Schonenberger, Patrik M. and Candolfi-Vasconcelos, M. Carmo
Abstract:: Three different cover crop treatments were compared for their effects on vine growth, leaf gas exchange, yield parameters and fruit composition. The treatments were: resident plants, an insectary plant mixture and a grass cover. At veraison (August 2 1), photosynthesis rate was lowest for the vines with the grass cover...
Resource Type:: Technical Report
Full Text:: Wine Advisory Board Research Progress Report 1996 - 1997 Evaluation of Cover Crop Effects in a

Creator:: Brasher, Erik and Candolfi-Vasconcelos, M. Carmo
Abstract:: A broad range of factors influences wine grape quality and its manipulation has stimulated interest among grape growers, wine makers, and research scientists alike. One such factor affecting wine grape quality is crop level, particularly for Pinot noir. Since the capacity of a vine to ripen fruit depends largely on...
Resource Type:: Technical Report
Full Text:: m (500 ft) . Site two (#2) was located at Hyland vineyard where selected data vines are Pinot noir

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