Ethephon has mixed effects on table grapes

Jensen, F; Andris, H

Ethephon has mixed effects on table grapes

Authors

Fred Jensen
Harry Andris

Authors Affiliations

Fred Jensen is Extension Viticulturist, both in Cooperative Extension, University of California, San Joaquin Valley Agricultural Research and Extension Center, Parlier; Harry Andris is Staff Research Associate, both in Cooperative Extension, University of California, San Joaquin Valley Agricultural Research and Extension Center, Parlier.

Publication Information

Hilgardia 31(8):18-18. DOI:10.3733/ca.v031n08p18. August 1977.

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Abstract

The growth regulator ethephon (Ethrel) has been shown to improve coloring of the table grape varieties, Red Malaga, Queen, Tokay, and Emperor if applied after some of the berries have begun to show color. Preliminary trials with Cardinals showed slight color benefits, of dubious commercial significance. Trials with Ribier have never shown benefit. More detailed trials were established at the Kearney Horticultural Field Station near Parlier in Fresno County during the 1976 season.

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