Phenological data of 'Niagara Rosada' grape was evaluated at different localities in the State of São Paulo, for the following prunning dates: July 15; August 1st; August 15 and September 1st, during the seasons: 1989/90 and 1990/91, with subject of evaluate the phenological behavior and required total degree-days. The duration of the phenological phases varied as a function of the locality and prunning date and the duration of the total cycle lasted from 116 days for the prunning date 01/09 at Tietê and Mococa, to 199 days for the crop pruned on 15/07 at São Roque. The estimated base-temperature for the period buding/harvest was 12°C and the average amount of growing degree-days accumulated was 1,330 with extremes of 1,248 for Jundiaí and 1,386 for São Roque. It was noticed that the prunning date did not show influence on the total degree-days needed to complete the period in a same locality.
grapes; Niagara Rosada; phenology; degree-days; base temperature