Research Article

Characterization of the Wine Grape Thermohydrological Conditions in the Tropical Brazilian Growing Region: Long-Term and Future Assessments

Table 1

Mean values of the vineyard grape water requirements, cv. Syrah, for different pruning dates, considering an average growing season of four months (VWRGS) and the baseline conditions (1961–1990) in the Brazilian Northeastern states of Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), Paraíba (PB), Pernambuco (PE), Alagoas (AL), Sergipe (SE), and Bahia (BA).

Pruning date (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)

January278.6 312.9 327.0 336.2 319.2 319.2 318.3 331.4 311.2
February271.2 304.0 313.2 323.8 306.1 304.9 306.7 321.5 301.4
March269.5 298.0 309.0 316.0 297.6 294.3 295.2 308.3 288.6
April287.7 308.8 324.9 325.1 307.8 302.0 300.9 311.5 295.0
May 319.0 329.0 348.2 341.4 324.3 316.6 312.3 320.4 312.0
June352.5 358.3 375.0 363.1 348.0 341.0 332.5 336.4 336.5
July392.8 401.8 405.2 390.9 378.7 374.6 363.0 366.0 374.8
August 406.5 420.5 415.0 400.1 389.4 388.4 374.3 376.5 385.9
September 408.7 428.9 422.5 409.1 389.4 400.4 386.6 389.1 399.8
October 382.6 408.5 409.5 399.8 389.1 390.3 378.0 383.1 376.6
November 344.0 371.0 383.5 379.8 367.0 367.2 359.0 366.7 351.1
December 312.2 341.5 357.8 361.4 346.1 345.8 341.9 353.0 333.7
Year 335.4 356.9 365.9 362.2 346.9 345.4 339.1 347.0 338.9