Articles
INFLUENCE OF GIBBERELLIC ACID SPRAYS ON BERRY SIZE AND SHOT BERRY ON ‘VANESSA’ GRAPEVINES
Article number
527_17
Pages
153 – 158
Language
Abstract
‘Vanessa’, a cool-climate, red seedless table grape, has several excellent characteristics but suffers from small berry size and the frequent occurrence of shot berries.
Gibberellic acid sprays at concentrations of 25 and 50 ppm were applied when berry diameters averaged 3-, 5-, 7-, and 9-mm.
All GA applications reduced the incidence of shot berries and increased berry weight.
GA applied at a concentration of 50 ppm when berry diameter averaged 5-mm was most effective for both purposes.
Gibberellic acid sprays at concentrations of 25 and 50 ppm were applied when berry diameters averaged 3-, 5-, 7-, and 9-mm.
All GA applications reduced the incidence of shot berries and increased berry weight.
GA applied at a concentration of 50 ppm when berry diameter averaged 5-mm was most effective for both purposes.
Authors
Thomas J. Zabadal, Thomas W. Dittmer
Keywords
Vitis, table grapes, coulure
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