TY - JOUR T1 - The Influence of Vine Water Regime on Ethephon-Enhanced Ripening of Zinfandel JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 115 LP - 121 DO - 10.5344/ajev.1981.32.2.115 VL - 32 IS - 2 AU - W. J. Hardie AU - J. O. Johnson AU - R. J. Weaver Y1 - 1981/01/01 UR - http://www.ajevonline.org/content/32/2/115.abstract N2 - In a study conducted for two seasons in a vineyard of the University of California at Davis, ethephon (2-chloroethylphosphonic acid) was applied at véraison to Zinfandel vines maintained under three regimes of water supply, viz., maximally stressed, moderately stressed and minimally stressed. There were significant interactions between the responses to ethephon and vine water regime on fruit development and composition.In general, the data demonstrate that water stress retarded the accumulation of soluble solids and berry size while ethephon caused enhancement. Differences in fruit composition and size at harvest are considered the product of these opposing influences. ER -