| 九龙袍茶树光合特性与品质成分研究 |
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| 引用本文： | 钟秋生,陈常颂,林郑和,游小妹,陈志辉,陈荣冰.九龙袍茶树光合特性与品质成分研究[J].福建农业学报,2011,26(3):383-387. |
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| 作者姓名： | 钟秋生 陈常颂 林郑和 游小妹 陈志辉 陈荣冰 |
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| 作者单位： | 福建省农业科学院茶叶研究所,福建福安,355015 |
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| 基金项目： | 国家茶叶产业技术体系项目，福建省农业科学院青年人才创新基金项目，福建省财政专项——福建省农业科学院创新团队基金，福建省科技创新平台建设计划项目 |
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| 摘 要： | 以九龙袍品种为研究对象,测定不同叶位(1～6叶)的光合参数、叶绿素含量、鲜叶生化成分等差异,旨在明确九龙袍品种的光合特性与品质成分.结果表明:净光合速率、蒸腾速率随叶片成熟度的增加而下降；胞间CO2浓度随叶位变化规律不明显；叶绿素a、叶绿素b以及叶绿素总量从嫩叶到成熟叶片含量逐渐增加;RuBP羧化酶、POD酶活力从嫩叶...
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| 关 键 词： | 九龙袍 品种 光合特性 叶绿素 品质成分 |
Photosynthesis and Quality of Jiulongpao Tea |
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| ZHONG Qiu-sheng,CHEN Chang-song,LIN Zheng-he,YOU Xiao-mei,CHEN Zhi-hui,CHEN Rong-bing.Photosynthesis and Quality of Jiulongpao Tea[J].Fujian Journal of Agricultural Sciences,2011,26(3):383-387. |
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| Authors: | ZHONG Qiu-sheng CHEN Chang-song LIN Zheng-he YOU Xiao-mei CHEN Zhi-hui CHEN Rong-bing |
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| Institution: | (Tea Research Institute,Fujian Academy of Agricultural Sciences,Fu′an,Fujian 355000,China) |
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| Abstract: | Using a portable photosynthetic meter,the photosynthetic characteristics of Jiulongpao(C.sinensis cv.Jiulongpao)tea plant were determined.Measurements were made on the leaves of the plants.Various factors concerning the tea quality were analysed.The results showed that the rates of net photosynthetic(Pn) and transpiration(Tr) decreased as the plant matured.The plant’s intercellular CO2 concentration(Ci) showed no significant difference among the leaves from different positions on a plant.The contents of chlorophyll a,chlorophyll b and total chlorophy increased from the 1st leaf to the 6th leaf.So did the activities of ribulose diphosphatecarboxylase(RUBP) and peroxidase(POD) enzymes,at 46.42 μmol·m-2·s-1 and 34.21μmol·m-2·s-1,respectively,on the 6th leaf.The activities of catalase(CAT) were lower in the 2nd and 3rd leaves than the others.The quality indices,such as aqueous extract,tea polyphenols,amino acids and caffeine in Jiulongpao,varied in different leaves.The water extract of the 2nd leveas was the highest(44.28%) among all.The polyphenols contents in the 1st and 2nd leaf were higher than the others.The amino acid content in the 1st leaf was 4.84%,which was significantly higher than the others.It decreased with maturity of the leaves.The caffeine contents in all leaves were between 2.5% and 3%.The cellulose increased from the 1st leaf(7.99%) to the 6th(17.3%). |
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| Keywords: | Jiulongpao variety photosynthetic characteristic chlorophyll quality components |
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