BEHAVIOR OF NIAGARA ROSADA CULTIVAR GRAFTED ON DIFFERENT ROOTSTOCKS IN THE SOUTH OF SANTA CATARINA, BRAZIL

ABSTRACT

The ‘Niagara Rosada’ vine is the main variety of table grape grown in southern Brazil. To improve the quality of grapes produced, an experiment was conducted with the following rootstocks: ‘Jales’, ‘Tropical’, ‘Campinas’, ‘VR 043-43’, ‘R-99’, ‘Paulsen 1103’, ‘Schwarzmann’, ‘Traviú’, ‘Golias’, ‘Gravesac’, ‘RR 101-14’, ‘Dog Ridge’, ‘VR 044-4’, ‘Kobber 5BB’ and ‘SO4’, and the ungrafted. The phenology, the vigour, the survival rate and the production of the plants (productivity, bunch size and number of bunches per plant) were evaluated. The different rootstocks do not influence the plantphenology. The greatest vigour was found in the ‘Dog Ridge’ rootstock, followed by the ‘Campinas’, the ‘Paulsen 1103’ and the ‘VR 043- 43’. The highest mortality rates of the plants, after 11 years of experiment happened to the ungrafted (56%), Traviu’ (50%) and ‘Schwarzmann’ (41%). The ‘Paulsen 1103’, ‘Campinas’ and ‘Golias’ rootstocks, besides a high productivity, presented the largest size and the best presentation of bunches.

Index terms
Viticulture; grape production; table grape; Vitis