Bloom Spraying with Gibberellin Loosens Clusters of Thompson Seedless Grapes

Authors

R. J. Weaver
R. M. Pool

Authors Affiliations

Robert J. Weaver is Professor of Viticulture in the Department of Viticulture and Enology, University of California, Davis; Robert M. Pool is Laboratory Technician II in the Department of Viticulture and Enology, University of California, Davis.

Publication Information

Hilgardia 19(11):14-15. DOI:10.3733/ca.v019n11p14. November 1965.

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Abstract

Applications of gibberellin to Thompson Seedless grapes during bloom produce a very loose cluster. Loose clusters may be less subject to summer bunch rot and are easier to pack than the more compact cluster often produced by the commercially accepted practice of spraying following bloom.