1980•American Journal of Enology and ViticultureRequires access

The Effects of Ethephon on Thompson Seedless Grapes and Raisins

Fred L. Jensen, J. Peter Christensen, Harry L. Andris, Fred Swanson, George M. Leavitt, W Peacock

Abstract

Ethephon applied at véraison, or seven to 10 days before or after this stage, increased soluble solids .6 to 1.2°Brix in five of six trials. A concentration of 150 ppm was generally the most effective. Except for one trial, response was similar for application dates. Raisin grades were improved with ethephon in two of the three trials in which raisins were made.

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Key concepts: Ethephon, Horticulture, Brix, Food science, Chemistry, Biology, Ethylene, Sugar