不同品种及采收时期番茄果实的品质分析韦强,钱井,赵立群,满杰(北京市农业技术推广站,北京100029)摘要:以丰收560、京采8号、Cap、Saopolo和Jua5个番茄品种为研究对象,设置了5个采收时期,通过测定可溶性固形物、可滴定酸、可溶性糖含量等品质指标,分析不同品种番茄及采收时期的品质差异性,以期为番茄品质分级提供依据。结果表明:不同番茄品种的品质存在明显差异性,其中Saopolo的可溶性固形物、可溶性糖、可滴定酸、VC含量平均值最高,分别为8.92%、7.35%、0.66%和4.57mg/g,均显著高于除Jua外的其他品种;丰收560的可溶性固形物、可溶性糖含量平均值最低,分别为3.64%、2.04%;不同采收时期的番茄果实品质存在一定差异性,其中可溶性固形物含量、固酸比、VC含量和a*值等果实品质均存在显著差异,可溶性糖含量、可滴定酸含量、糖酸比、L*值、硬度和感官品质等差异较小。综上,在番茄品质分级时,可将可溶性糖含量、可滴定酸含量、糖酸比、L*值、硬度和感官品质作为分级指标,以减少采收时期对品质分级的影响。关键词:番茄;品种;采收时期;品质;分级QualityAnalysisofTomatoFruitsinDifferentVarietiesandHarvestPeriodsWEIQiang,QIANJing,ZHAOLi-qun,MANJie(BeijingAgriculturalTechnologyExtensionStation,Beijing100029,China)Abstract:Inordertoprovideevidencefortomatoqualitygrading,fivetomatovarietieswereusedasexperimentalmaterialsbyanalyzingthequalityindexesincludingsolublesolids,solublesugar,titratableacidandetc.,todeter-minethequalitydifferencebetweentomatovarietiesduringfiveharvesttime.Theresultssuggestedthatthereweresignificantdifferencesinthequalityoffivetomatovarieties.Theaveragecontentsofsolublesolid,titratableacid,solublesugarandVCof‘Saopolo’were8.92%,7.35%,0.66%and4.57mg/g,respectively,whichweresignificantlyhigherthantheothervarietiesexcept‘Jua’.Theaveragecontentsofsolublesolidandsolublesugarof‘Harvest560’werethelowest,only3.64%and2.04%respectively.Therewerecertaindifferencesontomatoqualityduringmultipleharvesttime,includingsolublesolid,solidacidratio,VCanda*value,buthadnosignificantdifferencesonthesolublesugarcontent,titratableacidcontent,sugaracidratio,L*value,hardnessandsensoryquality.Therefore,solublesugarcontent,titrat...