02558nam a2200373 a 450000100080000000500110000800800410001910000200006024501190008026001070019930000270030652015070033365000110184065000280185165000220187965000130190165000080191465000140192265000100193665300110194665300240195765300210198165300100200265300190201265300090203170000170204070000250205770000220208270000150210470000180211970000130213770000150215070000190216519278062016-09-14       2012    bl uuuu     u00u1 u    #d1 aOLIVEIRA, J. B.  aInfluence of the vintage, clone and rootstock on the chemical characteristics of Syrah tropical wines from Brazil.  aIn: CONGRES DES TERROIRS VITIVINICOLES, 9., 2012, Bourgogne/Champagne. [Annales...] [S.l.: s.n.]c2012  ap. 17-20.c1 pendrive.  aIn the Northeast of Brazil, vines can produce twice a year, because annual average temperature is 26ºC, with high solar radiation and water availability for irrigation. Many cultivars have been tested according to their adaptation to the climate and soil, and the main variety used for red wines is Syrah. This work aimed to evaluate five clones of Syrah, grafted on two rootstocks, in two harvests of the second semester of 2009 and 2010, according to the chemical analyses of the wines.The clones evaluated were 100, 174, 300, 470 and 525, the rootstocks were Paulsen 1103 and IAC 313 (Golia x Vitis caribeae). Grapes were harvested in November 2009 and 2010 and the yield was evaluated. Climate characteristics of each harvest was determined and correlated to the results. Wines were elaborated in glass tanks of 20 L, with alcoholic fermentation at 25ºC for seven days, then wines were pressed and malolactic fermentation was carried out at 18ºC for 20 days. The following parameters were analyzed: alcohol content, dry extract, total anthocyanins, total phenolic index. High performance liquid chromatography was used to determine tartaric, malic, lactic and citric organic acids. Results showed that wines presented different concentrations of classical analyses, phenolics and organic acids according to the harvest date, rootstocks and clones. Principal component analysis was applied on data and clusters with wine samples were formed, explaining the variability, and results are discussed.  aGrapes  aAnálise organoléptica  aAnálise química  aEnologia  aUva  aVariedade  aVinho  aBrasil  aNordeste Semiárido  aRegião tropical  aSyrah  aVinho tropical  aWine1 aSILVA, G. G.1 aARAÚJO, A. J. de B.1 aLIMA, L. L. de A.1 aONO, E. O.1 aCASTRO, R. de1 aCRUZ, A.1 aSANTOS, J.1 aPEREIRA, G. E.