Ultrafiltration (UF), using Romicon pilot-scale hollow-fiber
cartridges (Model HFXS-MK11) in the batch mode, was investigated
as a possible procedure for clarifying, stabilizing and preserving
White Riesling (WR) and Thompson Seedless (ThS) grape juice. The
effect of UF processing of SO₂-treated or untreated juice, of process
temperature and membrane molecular weight...
Published December 1935. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Growing grapes in your home garden can be a wonderful hobby and
a challenging experience. You can grow many cultivars (varieties)
of grapes; the fruit of each cultivar has an aroma, flavor, and other
qualities that make it unique.
Published June 1901. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Pruning weights are the best way to monitor vine growth and vine size changes caused by vineyard management practices. It is easy to gather these data during routine, annual pruning.
Death of flower parts near bloom due to inflorescence necrosis (IN) is associated with high ammonium (NH₄⁺) concentration in flower clusters, shade, cool wet weather preceding bloom, and excessive vigor. Faults in NH₄⁺ assimilation are suspected to cause a rise in NH₄⁺ concentration to toxic levels in flower cluster but...
It’s that time of year when many of you are out and about scouting for the earliest signs of powdery mildew and implementing your vineyard spray programs throughout the state. Here’s a quick status update for powdery mildew forecasting and management.
Canopy management is critical to successful winegrape production. Canopy management begins with vineyard design and includes decisions about soil, water, cover cropping, fertilization and weed control. Shoot thinning, leaf removal, hedging and crop thinning are also part of canopy management.
