ALVES, E. O. dos S.

BORGES, R. M. E.

BRANDÃO. E. O.

GONÇALVES, N. P. da S.

LEAO, P. C. de S.

MOURA, M. S. B. de

SILVA, T. G. F.

As this new tropical zone is starting to produce young wines

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r--212Degree-days and phenological characterization of five redgrapevines cultivated in a Tropical Semi-Arid region of BrazilRita Márcia Estigarríbia Borges 1,Magna Soelma Beserra de Moura1,Patrícia Coelhode Souza Leão1, Nadja Pollyanna da Silva Gonçalves2, Elieth Oliveira Brandão2,Elaini Oliveira dos Santos Alves2, Thieres George Freire da Silva31BrazilianAgriculturalResearchCorporation,EmbrapaTropicalSemi-Arid,Petrolina-PE,Brazil2ScholarshipholderfromFACEPE/CNPq/EmbrapaTropicalSemi-Arid,Petrolina-PE.Brazil.3DoctorGraduateStudent,DEAlUFVNiçosa-MG.BrazilEmail:magna@cpatsa.embrapa.brBackground and AimsTheTropicalSemi-AridofNortheastBrazilhasoneimportantareacultivatedwithirrigatedfruits.In thisarea,themeanairtemperatureis26.5°C,thetotalannualprecipitationis 540mm,andmeanpanevaporationisabout2700mm,relatedtoanegativesoilwaterbalance.Grapesareirrigatedbydrip,for example,usingwaterfromtheSaoFranciscoRiver,allowinga continuousvegetativedevelopmentofgrapevinesthroughoutthewholeyear.Significance of StudyAs thisnewtropicalzoneis startingtoproduceyoungwines,andtheinformationabouthermaldemandandphenologicalcharacterizationf redgrapevinesarerequiredtoallowanincreaseofirrigatedvineyardsarea(MOURA etaI,2007).Thisworkaimedto determinedegree-daysandphenologicalcharacterizationof tiveredgrapevinescultivatedinNortheastBrazil.Methods:DatawereobtainedinanexperimentalvineyardlocatedatEmbrapaTropicalSemi-Arid,BahiaState.Itwasevaluatedthenumberofdaysfrompruningtoharveststartinginthetirstandsecondsemesterof 2003to2007,fortiveredgrapevines:CabernetSauvignon,Grenache,PetitSyrah,PetitVerdotandTempranillo.Degree-dayssumof thegrapevineswas determinedusing10°Cas basetemperature.TheairtemperaturewasmeasuredinanAgrometeorologyWeatherStationlocatedintheexperimentalarea.Results:TheresultsevaluatedthroughTukey'sTest(5%)showedthattherewerenotstatisticaldifferencesfor degree-daysumandproductivecycledurationbetweenthestudiedvarieties.ConclusionsThemeansumswere1815,1950,1963,2154and2164degree-days,relatedto 109,112,115,129and117daysfromthepruningtoharvest,respectivelyforTempranillo,PetitVerdot,PetitSyrah,CabernetSauvignon,andGrenache.ReferencesMOURA, M.S.B.;BRANDAO, E.O.; SOARES,1.M.;DONOSO,C.D.; SILVA, T. G. F. andSOUZA, L. S. B. (2007)Exigênciatérmicae caracterizaçãofenológicada videiraCabernetSauvignono Vale SãoFrancisco- Brasil.Proceedingsof theXI CONGRESSOLATINOAMERICANODE VITICULTURA Y ENOLOGIA,Mendonza,Argentina.CD-Rom.8thIntemationalSymposiumonGrapevinePhysiologyandBiotechnology,Adelaide,Australia

Degree-days and phenological characterization of five red grapevines cultivated in a tropical semi-arid region of Brazil.

http://www.alice.cnptia.embrapa.br/alice/bitstream/doc/132880/1/OPB2076.pdf

Degree-days and phenological characterization of five red grapevines cultivated in a tropical semi-arid region of Brazil.

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