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United States Department of Agriculture

Agricultural Research Service

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Research Project: Optimizing Foliar Potassium Use in Table Grape Vineyards

Location: Commodity Protection and Quality Research

Project Number: 2034-43000-036-09-T
Project Type: Trust Fund Cooperative Agreement

Start Date: May 1, 2012
End Date: Apr 30, 2014

The primarily objective is to examine the interaction of vineyard treatments of foliar potassium, ethephon, abscisic acid and irrigation regimens on color development and quality of table grapes.

Three factorial split plot vineyard experiments examining the effect of plant growth regulator interactions with foliar potassium applications are proposed: ‘Flame Seedless’ in two experiments (Coachella Valley and San Joaquin Valley) and ‘Crimson Seedless’ in one experiment (San Joaquin Valley). The incidence of summer bunch rot disease and postharvest decay will be recorded, as will the quality of the fruit will be documented before harvest, the day of harvest, and after long storage.

Last Modified: 10/16/2017
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