Effects of CPPU ando giberelic acid in morfologic caracteres of cluster and berry 'Vênus' grape - DOI: 10.4025/actasciagron.v28i4.784

Abstract

With the objective of studying the effects of CPPU and GA3 on the clusters and berries characteristics of ‘Venus’ grapes, two trials were carried out over two seasons. In 2001, CPPU was applied at 0, 5.0, 7.5, 10, 12.5, 15.0 and 17.5 mg L^-1, and the following doses of GA₃ were used: 0, 25, 50, 75, 100, 125 and 150 mg L^-1. In 2002, CPPU was applied at 0, 15, 30, 45, 60, 75 and 90 mg L^-1; and the following doses of GA₃ were used: 0, 30, 60, 90, 120, 150 and 180 mg L^-1. The growth regulators were applied by dipping clusters into aqueous solutions. For all trials the experimental design was randomized complete block, with 7 treatments and 6 replications. For each cluster were evaluated: weight of cluster, rachis and berries, length and width of berries and number of berries. In the two years of studying, both CPPU and GA3 treatments linearly increased weight, length and width of berries.