ChileanJAR

Two fields trials were performed at Cauquenes, Chile, to quantify the effects of these three techniques on Moscatel Rosada table grapes. Giberelic acid (G.A.), 50 ppm with or without bunch docking, resulted in increased bunch weight. Without bunch docking, G.A. reduced soluble solids and increased total acids in the fruits. Bunch docking suppresed these two last effects, and in absence of G.A., reduced total acids in the fruits. G.A. increased the number of berries over 1 cm diameter (with a lower average weight) and had the opposite effects on berries below that diameter. Cane girdling increased the weight of bunches aboye the incision and reduced that of bunches below, so production/plant was not affected. G.A. suppresed the effects of girdling.