作 者：
董燕梅;牛艳丽;牛冬青;代伟娜;李孟欣;温鹏飞
关键词：
UV-C照射;霞多丽葡萄;果实品质;叶绿素;叶片组织结构;光合生理
摘 要：
[目的]初步研究UV-C照射对霞多丽葡萄果实品质形成及叶片光合生理的影响。[方法]以8年生霞多丽葡萄(Vitis vinifera L. cv Chardonnay)为试材,定期对植物进行紫外(UV-C)照射,分别采用质量法、游标卡尺测量法、分光光度计法、滴定法、光合仪测量法对果实的质量、纵横径、糖、酸、维生素C、叶片组织结构、叶绿素含量及相关的光合生理指标进行测量。[结果]葡萄果实生长发育的过程中,紫外线照射,没有改变果实单粒重、横径以及纵径的增长规律和可溶性总糖及有机酸的积累规律,也并未明显改变霞多丽叶片栅栏组织与海绵组织结构,但显著影响着果实的内在品质,明显促进叶绿素含量增加,光合速率增加。UV-C照射导致霞多丽果实总糖含量分别提高3.25%(花后20d)、8.27%(花后80d),有机酸含量降低34.18%(花后80d),且在果实成熟期内,Vc含量降低5.89%(花后80d),叶绿素增加23.87%,光合速率增加139.24%。[结论]UV-C照射可促进总糖含量增加,有机酸含量降低,叶绿素含量增加,导致果实的内在品质提高。
译 名：
Effects of UV-C radiation on Chardonnay fruit quality and photosynthetic physiology of grape leaves
作 者：
Dong Yanmei;Niu Yanli;Niu Dongqing;Dai Weina;Li Mengxin;Wen Pengfei;College of Horticulture,Shanxi Agricultural University;
关键词：
UV-C radiation;;Vitis vinifera L. cv Chardonnay;;Fruit quality;;Chlorophyll;;Leaf structure;;Photosynthetic physiology
摘 要：
[Objective]The effect of UV-C on the fruit quality formation and photosynthetic physiology of grape leaves during berry development were studied.[Methods]In this paper,the 8-year old grapevines of Chardonnay were subjected to regular UV-C radiation during berry development.The single berry weight,horizontal diameter,longitudinal diameteand,the soluble sugar,the organic acid,Vc and chlorophyll were measured.[Results]The result showed:with grape berry growth,ultraviolet radiation,not change single berry weight,horizontal diameter and longitudinal diameter growth rule and accumulation of soluble sugar and organic acid.And UV-C radiation didn't significantly alter the palisade tissue/spongy tissue structure of leaves of Cabernet Sauvignon and Chardonnay,but significant affected the internal fruit quality and promoted the increase of chlorophyll content and photosynthetic rate.UV-C radiation increased the soluble sugar content 3.25%(20 days after bloom),8.27%(80 days after bloom),respectively;reduced the organic acid content 34.18%(80 days after bloom);and in the fruit maturation period,Vc contents in the fruits decreased,reduce 5.89%(80 days after bloom);chlorophyll and photosynthetic rate increased 23.87%,139.24%,respectively.[Conclusion]Results of the study indicated that the UV-C radiation could induce the soluble sugar,the organic acid and chlorophyll,and resulted in the increase of internal fruit quality.
