南京农业大学学报2011，Vol.34Issue(5)：47-52,6.
遮光对丘陵茶园茶叶产量指标和内含生化成分的影响
Effects of shading on yield index and biochemical components of tea in hilly tea plantation
摘要
Abstract
This paper was aimed at discussing the effects of shading with different color nets on yield index and main biochemical components of tea plants. Three selected colors (black, green and silver white) with shading intensity of (50±3)% were taken and non-shading was used as control,and the tea varieties of Bixiangzao' and' Fuda 61' were employed. Results showed that 100-bud weight of the tea varieties were improved under the shading nets in spring,but the impacts of that was not significant compared to the control;While' Bixiangzao' and ' Fuda 61' were significantly higher than the non-shading under the black nets in summer. Bud density and shoot water content of tea plants were highest under black, then under green and silver white successively. In different seasons,the use of black net significantly increased amino acids( AA)and caffeine contents, while it reduced the tea polyphenol(TP) contents and the TP/AA ratio. In comparison with the non-shading, the black net increased the AA contents of Bixiangzao' and ' Fuda 61' by 6. 56% and 21. 78% in spring, and 15. 76% and 19. 66% in summer, respectively. Meanwhile, the TP contents dropped by 29. 68% and 24.91% in spring,and 5. 59% and 13. 15% in summer,respectively. The TP/AA ratio was significantly less than the control by 33. 95% and 38.67% in spring,and 18. 39% and 27.69% in summer. The caffeine content increased by 8.08% and 6.07% in spring,and 10. 61% and 7.98% in summer,respectively. It was suggested that shading under the black nets could facilitate nitrogen metabolism and restrain carbon metabolism of tea plants which improved tea quality by improving briskness and reducing the bitter taste.关键词
丘陵茶园/遮光/产量指标/生化分析Key words
hilly tea garden/ shading/ yield index / biochemical analysis分类
农业科技引用本文复制引用
秦志敏,John Tanui,冯卫英,王玉花,肖润林,黎星辉..遮光对丘陵茶园茶叶产量指标和内含生化成分的影响[J].南京农业大学学报,2011,34(5):47-52,6.基金项目
现代农业产业技术体系建设专项(CARS-23) （CARS-23）
江苏高校优势学科建设工程专项资金 （）
中国科学院知识创新工程重要方向项目(KSCX2-YW-N-48) （KSCX2-YW-N-48）
广西区科技计划项目(桂科合0992031-20) （桂科合0992031-20）
科技部科技人员服务企业行动项目(2009GJC10031) （2009GJC10031）
江苏省科技计划项目(BE2009313-1、BE2010345、BM2008144、 BE2008320-2) （BE2009313-1、BE2010345、BM2008144、 BE2008320-2）
苏州市科技发展计划项目(SZGD201067、 WNZ1002、吴政抄2009字65号) （SZGD201067、 WNZ1002、吴政抄2009字65号）
