Effects of timing gibberellin sprays for berry sizing on maturity of table Thompson Seedless

The maturity of table Thompson Seedless was not affected in these tests by the time of application of berry-enlarging sprays of gibberellin, whether the sprays were applied when the grapes were at the shatter stage or at one, two, or three weeks after shatter. The shatter and shatter-plus-one-week treatments did produce larger berries than did the two later spray treatments.