遮光对丘陵茶园白露毛尖茶产量和品质的影响  

Effects of Shading on Yield and Quality of Bailu Maojian Famous Tea

作　　者：单武雄[1,2] 肖润林[1] 王久荣[1] 陈佩[1,2] 付晓青[1] 

机构地区：[1]中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态过程重点实验室,湖南长沙410125 [2]湖南农业大学,湖南长沙410128

出　　处：《农业现代化研究》2010年第3期368-372,共5页Research of Agricultural Modernization

基　　金：国家支撑计划重点项目"华中城市群郊区高效农业与环境协调优化技术集成与示范"(编号:2008BADA7B07);中国科学院知识创新工程重要方向项目"丘陵茶园生态管理研究与示范"(编号:KSCX2-YW-N-48);长沙市科技计划重点项目"丘陵茶园名优绿茶生产关键技术研究与示范"(编号:k070514-11)

摘　　要：通过80%、60%和40%3个不同遮光率处理和露地对照试验,比较了遮光处理对秋季名优绿茶产量和品质的影响。试验表明,和露地对照处理比较:3个遮光处理茶园的田间气温和地表温度显著降低,空气湿度明显增加,有害高温和低湿出现的频率降低;1芽1叶长度、芽密度、百芽重和鲜叶产量下降,但差异不显著;鲜叶中叶绿素含量显著增加;白露毛尖茶中粗纤维含量显著降低,苦涩味组分茶多酚等含量降低,氨基酸含量显著增加,可溶性糖含量和水浸出物总量增加,酚氨比值下降,白露毛尖茶色泽、滋味和香气等感官品质明显改善。结果表明遮光处理显著改善白露毛尖茶品质,提升秋季名优绿茶档次,效果以80%遮光率最好,60%遮光率次之。the effects of shading degree of 80%, 60% ,40% and 0% （CK）on the yield and quality of autumn green tea in hilly tea plantations were investigated. The results showed that compared with CK, the 3 shading treatments field temperature and the earth＇s surface temperature remarkably decreased. The atmosphere humidity obviously increased. The harmful of high temperature and low humidity occurring frequency decreased. The length of one leaf and one bud, bud the density, the weight of 100 buds, the yield of fresh leaves, the bitter components such as tea polyphenols, the ratio polyphenols to amino acid and the content of chlorophyll in fresh leaves all decreased. The content of crude fiber decreased remarkably, the color, taste and flavor of Bailu Maojian famous tea were obviously improved while the amino acid increased, soluble sugar and water extract content increased. The experiments indicated that shading could decrease the yield of autumn famous tea lightly, but could remarkably improve the quality, the price of autumn famous tea and the product benefits in hilly tea plantations.

关 键 词：丘陵茶园 遮光 白露毛尖茶 生态管理 

分 类 号：S571.1[农业科学—茶叶生产加工]