塑料大棚多层覆盖对茶园小气候及茶叶产量和品质的影响

doi:10.3969/j.issn.1000-2006.2014.03.012

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (03): 59-64.doi: 10.3969/j.issn.1000-2006.2014.03.012

塑料大棚多层覆盖对茶园小气候及茶叶产量和品质的影响

林永锋¹,胡永光¹,李萍萍^1,2*

1.江苏大学农业工程研究院,现代农业装备与技术省部共建教育部重点实验室,江苏镇江 212013;
2.南京林业大学森林资源与环境学院,江苏南京 210037

出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
收稿日期:2013-07-23 修回日期:2013-12-02
基金项目:国家高技术研究发展计划(2012AA10A508); 国家自然科学基金项目(31101089); 江苏省农业科技自主创新资金项目(CX(12)3025); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:林永锋,硕士生。*通信作者:李萍萍,教授。E-mail:ppli@njfu.edu.cn。
引文格式:林永锋,胡永光,李萍萍. 塑料大棚多层覆盖对茶园小气候及茶叶产量和品质的影响[J]. 南京林业大学学报:自然科学版,2014,38(3):59-64.

Effects of multi-film covering in plastic greenhouses on the microclimate tea yield and quality of tea garden

LIN Yongfeng¹, HU Yongguang¹, LI Pingping^1,2*

1. Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education and Jiangsu Province, Institute of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China;
2. College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China

Online:2014-05-15 Published:2014-05-15

摘要/Abstract

摘要： 在茶园设置塑料大棚双层覆膜、3层覆膜、3层膜并电热线加温等3个处理,以露地栽培为对照,比较了茶园小气候、茶树生长、光合特性、茶叶内含成分及产量的差异。结果表明:不同层次覆盖明显提高了茶园日平均气温、地温和相对湿度,虽光照降低,但晴天茶树净光合速率是对照的2.46～2.84倍; 茶叶新梢长度、百芽质量和芽密度均显著增加,1芽1叶茶芽采摘期比对照提前10～21 d; 3种处理茶鲜叶产量分别提高80%、96%、176%。生化分析结果显示,各处理茶多酚、氨基酸、咖啡碱和水浸出物均有显著差异,双层覆膜处理的茶叶酚氨比达到高档绿茶标准。

Abstract: This article aimed to determine the effect of different levels of coverage on microclimate, growth and quality of tea. The temperature, humidity, illumination of tea garden and photosynthetic characteristics, ingredients and yield of tea were measured. Four different treatments, i.e., outdoor cultivation(CK), double-film covering, triple-film covering and triple-film covering with electricity heating were included. The results showed that different level cover obviously enhanced the average temperature, ground temperature and relative humidity within the tea garden. Furthermore, the net photosynthetic rate of treatments in the sunny day was 2.46-2.84 times than that of CK. However, the intensity of illumination in the greenhouse decreased. In addition, the new shoots, hundred buds weight and budding density of tea also increased significantly. Therefore, the picking time of one-bud and one-leaf of treatments was 10-21 d earlier than that of CK, and the tea fresh leaf yield of three treatments increased by 80%, 96%, 176%, respectively. Biochemical analysis indicated that contents of tea polyphenol, amino acid, caffeine and water extracts of each treatment were significantly different. The tea phenol ammonia ratio of double-film covering reached fine-grade green-tea standards.

中图分类号:

S723.1⁺35

林永锋,胡永光,李萍萍. 塑料大棚多层覆盖对茶园小气候及茶叶产量和品质的影响[J]. 南京林业大学学报（自然科学版）, 2014, 38(03): 59-64.

LIN Yongfeng, HU Yongguang, LI Pingping. Effects of multi-film covering in plastic greenhouses on the microclimate tea yield and quality of tea garden[J].Journal of Nanjing Forestry University (Natural Science Edition), 2014, 38(03): 59-64.DOI: 10.3969/j.issn.1000-2006.2014.03.012.

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塑料大棚多层覆盖对茶园小气候及茶叶产量和品质的影响

Effects of multi-film covering in plastic greenhouses on the microclimate tea yield and quality of tea garden

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