RT Journal Article SR Electronic T1 The Effects of Ethephon on Thompson Seedless Grapes and Raisins JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 257 OP 260 DO 10.5344/ajev.1980.31.3.257 VO 31 IS 3 A1 Fred Jensen A1 J. Peter Christensen A1 Harry Andris A1 Fred Swanson A1 George Leavitt A1 William L. Peacock YR 1980 UL http://www.ajevonline.org/content/31/3/257.abstract AB 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.