摘要
为比较单行双株、双行双株两种种植模式下黄金芽茶园的冠层光合特性,试验采用植物冠层分析仪、便携式光合作用测定系统对其叶面积指数(LAI)、光合有效辐射(PAR)、净光合速率(Pn)、蒸腾速率(Tr)、水分利用效率(WUE)等因素进行分析研究。结果显示,单行双株种植模式下叶面积指数平均值为4.60,较双行双株更接近高产茶园标准值;两种种植模式下光合有效辐射均呈现上冠层>中冠层>下冠层的趋势,说明单行双株种植模式下上、中、下冠层间密度分布更合理;综合分析净光合速率、蒸腾速率、水分利用效率等因素,在茶园中单行双株种植模式优于双行双株。因此,黄金芽单行双株种植模式更适用于茶园生产中。
In order to compare the photosynthetic characteristics of the'Huangjinya'tea garden under different planting modes(single-row double-plants and double-rows double-plants),the plant canopy analyzer and portable photo-synthesis measurement system were applied to study the influencing factors including the leaf area index(LAI),photosynthetically active radiation(PAR),net photosynthetic rate(Pn),transpiration rate(Tr)and water use efficiency(WUE).The results show that the average value of leaf area index under the single-row double-plants mode was 4.345,which was closer to the standard value of high-yield tea garden than that under the double-rows double-plants mode.The PAR under the two planting modes shows that upper canopy>middle canopy>the lower canopy.The density distribution among the upper,middle and lower canopies was more reasonable under the single-row double-plants mode.The comprehensive analysis of Pn,Tr,WUE and other factors shows that the single-row double-plants mode was betterthan double-rows double-plants mode in tea gardens.Therefore,the single-row double-plants model is more suitable for'Huangjinya'tea garden production.
作者
章文益
艾安涛
周为
姚新转
吕立堂
ZHANG Wenyi;AI Antao;ZHOU Wei;YAO Xinzhuan;Lü Litangt(School of Tea,Guizhou University,Guiyang 550000,China;Tea Industry Development Center of Guiding County,Guiding 551300,China;Key Laboratory of Mountain Plant Resources Conservation and Germplasm Innovation,Ministry of Education,Institute of Agricultural Bioengineering,Guizhou University/Collaborative Innovation Center for Mountain Ecology and Agricultural Bioengineering,Guiyang 550000,China)
出处
《中国茶叶》
2022年第4期34-40,共7页
China Tea
基金
贵州省茶产业技术创新中心(黔科中引地[2017]4005)
贵州省优秀青年科技人才培养项目(黔科合平台人才[2019]5651)
贵州省科技计划项目(黔科合支撑[2021]一般111)。
关键词
黄金芽
茶树
冠层指标
光合特性
蒸腾速率
Huangjinya
tea(Camellia sinensis)canopy index
photosynthetic characteristics
transpiration rate
