刘烁玲 胡煜 王卫星 孙道宗

摘要 [目的]研究茶树根系的生长规律。[方法]设计了基于CI-600的茶树根系生长监测试验，采用微根管法监测茶树根系形态的生长数据，花花草草监测仪检测土壤水分，希玛手持式温湿度计记录环境温度，并结合Office Excel和SPSS 25.0进行数据分析，寻找茶树根系生长的最佳土壤水分含量和环境温度条件。[结果]茶树的根数量、根长度、根面积和根体积均与15%～35%的土壤水分存在高度正相关关系。茶树的根数量、根长度、根面积和根体积增长最有利的环境温度在20～27 ℃。当环境温度在一定范围时，茶树的根数量、根长度、根面积、根体积与环境温度均呈显著正相关。当环境温度在一定范围时，茶树的根数量、根长度、根面积、根体积与环境温度建立的线性回归模型的拟合度均很好，有明显的因果关系。[结论]该研究为茶树的温室培育环境设计提供一定的数据支撑和理论基础。

关键词 茶树;CI-600;环境温度;根数量;根长度;根面积;根体积

中图分类号 S-126  文献标识码 A  文章编号 0517-6611（2021）12-0216-04

doi：10.3969/j.issn.0517-6611.2021.12.057

开放科学（资源服务）标识码（OSID）：

Root Growth Monitoring Experiment of Tea Tree Based on CI 600

LIU Shuo ling， HU Yu， WANG Wei xing et al

（College of Electronic Engineering and Artificial Intelligence， South China Agricultural University， Guangzhou，Guangdong 510642）

Abstract [Objective] To study the growth law of tea tree root system.[Method]This paper designed the tea tree root growth monitoring experiment based on CI 600. The micro root canal method was used to monitor the growth data of the root morphology of the tea tree. The flower and grass monitor detected soil moisture， and the Xima handheld thermometer and hygrometer recorded the environmental temperature，and combined with Office Excel and SPSS 25.0 for data analysis， to find the best soil moisture content and environmental temperature conditions for tea tree root growth.[Result]The root number， root length， root area and root volume of tea trees were highly positively correlated with soil moisture within the range of 15%-35%.The most favorable environmental temperature for the growth of the root number，root length，root area and root volume of tea tree was 20 - 27 ℃.When the environmental temperature was within a certain range， the root number， root length， root area and root volume of tea tree were significantly positively correlated with the environmental temperature.When the environmental temperature was within a certain range， the linear regression model of the root number， root length， root area and root volume of tea tree were well fitted with the environmental temperature， and there was an obvious causal relationship. [Conclusion] This research provides certain data support and theoretical basis for the design of tea greenhouse cultivation environment.

Key words Tea tree;CI 600;Environmental temperature;Root number;Root length;Root area;Root volume

根系具有吸收水分及無机盐、运输、储存等作用[1]，对茶树的生长发育尤为重要。研究发现，水分充足有助于根系生物量的积累和根系形态的构建[2]，且根系的生长与环境温度间有明显的相关关系[3]。因此，探究茶树根系生长的最佳土壤水分含量和环境温度条件，对茶树生产管理具有重要意义。

在国外，20世纪30年代就已有相关人员开始进行关于植物根系监测的非破坏性方法研究。……