气象因子对赤霞珠果实GLVs香气的影响  

The effect of climatic factors on the green leaf volatiles in Cabernet Sauvignon grape

作　　者：刘孟龙 李响 高振[1] 杜远鹏[1] LIU Menglong;LI Xiang;GAO Zhen;DU Yuanpeng(College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an 271018,Shandong,China)

机构地区：[1]山东农业大学园艺科学与工程学院,山东泰安271018

出　　处：《果树学报》2021年第11期1890-1899,共10页Journal of Fruit Science

基　　金：财政部和农业农村部:国家现代农业产业技术体系(CARS-29)。

摘　　要：【目的】探究影响葡萄中绿叶挥发物(Green leaf volatiles,GLVs)形成的关键气象因子。【方法】于2018年以国内7个产地的成熟期赤霞珠果实为试材,分析了各产地的气象因子和果实的香气特征,并且通过相关性分析筛选了影响果实GLVs香气合成的关键气象因子。【结果】张掖、高台产地7—9月的日照时数和温差显著高于其他产地,降雨量均低于其他产地;胶东半岛产地(蓬莱、莱西)7—9月份的日照时数最短,平均温度最高,温差最小;银川和怀来产地的气象条件更为相似,7—9月日照时数短于高台产地但多于胶东半岛,平均温度高于五家渠、高台、张掖但低于蓬莱、莱西产地。7个产地的葡萄可根据其香气特征分为3簇,一簇是张掖、高台和莱西;一簇是银川和怀来;一簇是五家渠和蓬莱。其中蓬莱产地的赤霞珠果实C6/C9醛类香气含量较高,包括2-己醛、反式-2-己烯醛、反式-2-壬醛;银川产地的果实醛类香气含量较低,但其乙酸丁酯、1-辛醇含量高于其他产地;张掖产地的赤霞珠果实乙酸乙酯、乙醇含量高于其他产地,其醛类香气含量高于高台、莱西、银川,但低于蓬莱产地。【结论】各产地香气与气象条件的相关性分析表明,生长季7—9月大温差有利于C6酯类的合成;生长季7—9月的高日照时数利于C6醇类和C6酯类的合成。【Objective】Volatiles are one of the essential indictors for grape quality,among which green leaf volatiles(GLVs)are the highest in grape berry.Volatiles are mainly affected by the climatic conditions of producing regions,but there are few studies on the key climatic factors affecting the formation of GLVs.Herein,we explored the effect of climatic factors on the GLVs in grapes.【Methods】In this study,Cabernet Sauvignon grape(Vitis vinifera L.)with same maturity level from seven different regions were collected in 2018,and the volatiles profiles of the grapes and meteorological characteristics of different regions were analyzed.Further,the key meteorological factors affecting grape GLV contents were screened by correlation analysis.【Results】Zhangye and Gaotai regions had longer sunshine duration,larger temperature difference and less rainfall compared with the other regions of Cabernet Sauvignon production.The regions of the Jiaodong Peninsula(Penglai,Laixi)had the shortest sunshine hours,the highest average temperature,and the lowest temperature difference.The meteorological conditions of Yinchuan and Huailai regions were similar,with lower sunshine hours than Gansu producing region but better than the Jiaodong Peninsula,and the mean temperature was higher than that in Wujiaqu,Gaotai,and Zhangye regions but lower than that in Penglai region.Grapes from the seven producing areas could be divided into three clusters according to their volatile characteristics.One cluster included Zhangye,Gaotai and Laixi regions;another cluster Yinchuan and Huailai regions;and the third cluster Wujiaqu and Penglai regions.Cabernet Sauvignon grapes in Penglai region had a high content of C6/C9 aldehyde volatiles,including 2-hexanal,trans-2-hexenal and trans-2-nonanal.Compared with the other regions,the content of aldehydes in Yinchuan berries was lower,but contents of butyl acetate and 1-octanol were higher than that in the other regions.The contents of ethyl acetate and ethanol in Cabernet Sauvignon berries in Zhangye reg

关 键 词：赤霞珠葡萄 气象因子 香气 

分 类 号：S663.1[农业科学—果树学]