摘要
采用CI-340便携式光合仪对苏州洞庭山地区柑桔-茶、板栗-茶、杨梅-茶、枇杷-茶、银杏-茶5种当地常见果茶间作模式下茶树光合特征参数日变化进行了研究。结果表明:5种间作模式下茶树的光合特征参数日变化呈单峰曲线,而对照茶树呈双峰曲线。相关性分析表明:当光合有效辐射强度增大,叶片温度会随之升高,导致净光合速率(Pn)升高,蒸腾速率增大,气孔导度增大,胞间CO2浓度减小。枇杷-茶间作模式下的Pn、蒸腾速率、气孔导度和胞间CO2浓度日均值分别为1.46μmol.m-2.s-1、0.91 mol.m-2.s-1、60.43 mol.m-2.s-1、305.57μmol.m-2.s-1,是供试的5种间作模式中较有利于茶树生长的,适合在江苏苏州洞庭山地区进行推广种植。
The diurnal variation of photosynthetic characteristic parameters of five local common fruiter-tea intercropping patterns just as orange-tea,Chinese chestnut-tea,waxberry-tea,loquat-tea and gingko-tea in Suzhou Dongting Mountain region was studied using CI-340 portable photosynthesis system.The diurnal variation of photosynthetic characteristic parameters of five tested intercropping exhibited single-peak curve;and the control was double-peak curve.Correlation analysis showed that the leaf temperature increased with the increasing of the intensity of photosynthetic active radiation,which induced the increase of net photosynthetic rate,transpiration rate,stomatal conductance and the decrease of intercellular CO2 concentration.The results showed that the loquat-tea in five tested intercropping patterns was the most beneficial to the growth of tea plants,and is adaptive for cultivation in Suzhou Dongting Mountain region in Jiangsu Province,and its daily mean of net photosynthetic rate,transpiration rate,stomatal conductance,intercellular CO2 concentration was 1.46 μmol·m-2·s-1,0.91 mol·m-2·s-1,60.43 mol·m-2·s-1,305.57 μmol·m-2·s-1 respectively.
出处
《南京农业大学学报》
CAS
CSCD
北大核心
2011年第5期53-57,共5页
Journal of Nanjing Agricultural University
基金
现代农业产业技术体系建设专项资金(CARS-23)
江苏高校优势学科建设工程专项资金
科技部科技人员服务企业行动项目(2009GJC10031)
江苏省科技计划项目(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)
关键词
茶树
洞庭山地区
果茶间作
光合特征参数
日变化
tea plant
Dongting Mountain region
fruit-tea intercropping
photosynthetic characteristic parameter
diurnal variation
作者简介
阮旭，硕士研究生。
通讯作者：黎星辉，教授，博导，从事茶树栽培与育种研究，E-mail：lxh@njau．edu．cn。
