太原市5种常绿植物入冬期间叶片SPAD值的变化特征  

Variation Characteristics in Leaf SPAD Values of 5 Evergreen Plants During Late Autumn Early Winter in Taiyuan

作　　者：昌秦湘 何雯杰 杨晓琴 夏鹏国 梁宗锁[2] CHANG Qin-xiang;HE Wen-jie;YANG Xiao-qin;XIA Peng-guo;LIANG Zong-suo(Institute of Landscape,Taiyuan University,Taiyuan,Shanxi 030032;College of Life Sciences and Medicine,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018)

机构地区：[1]太原学院园林科学研究所,太原030032 [2]浙江理工大学生命科学与医药学院,杭州310018

出　　处：《陕西林业科技》2024年第2期9-14,共6页Shaanxi Forest Science and Technology

基　　金：浙江省植物次生代谢与调控重点实验室开放基金(ZWCSDX-201901);山西省基础研究计划(202303021222227).

摘　　要：SPAD值能够反映植物叶片叶绿素含量,是表征植物生长状况的重要指标.以太原市5种常绿植物为研究对象,分别测定其在入冬期间的SPAD值,结合气象数据,运用方差分析、主成分分析和相关性分析,总结其在入冬期间SPAD值的变化特征.结果表明:入冬期间,刚竹和胶东卫矛的SPAD值整体表现为随时间推移而逐渐降低的趋势;巴山箬竹的SPAD值随时间推移变化幅度较小;刚竹、胶东卫矛的SPAD值与气温之间呈显著正相关(P<0.01),粗榧的SPAD值则与气温之间呈显著负相关(P<0.01),表明这三种植物的SPAD值受温度影响较大;小叶黄杨的SPAD值与相对湿度呈显著负相关(P<0.05);主成分分析将6个气象指标归纳成两个综合因子,分别为直接对叶片SPAD值影响的温度和间接对叶片SPAD值影响的相对湿度和日照时长.在园林应用方面,5种常绿植物在太原市入冬期均表现良好.本研究可为太原市园林植物选择、配置及养护管理提供参考依据.SPAD values can reflect the chlorophyll content of plant leaves and is an important indicator to characterize plant growth status.Five evergreen plants in Taiyuan city were used as the research objects,and their SPAD values during late autumn and early winter were measured respectively.Combined with meteorological data,the variation characteristics of their SPAD values were summarized by variance analysis,principal component analysis and correlation analysis.The results showed that during late autumn and early winter,the SPAD values of Phyllostachys sulphurea var.viridis and Euonymus fortunei showed a decreasing trend with time as a whole;the variation range of Indocalamus bashanensis was smaller;there was a significant positive correlation between the SPAD values of E.fortunei and P.sulphurea var.Viridis and the air temperature(P<0.01),and a significant negative correlation between the SPAD values of C.sinensis and the air temperature(P<0.01),indicating that the SPAD values of these three plants were greatly affected by temperature.The SPAD value of Buxus sinica var.parvifolia was significantly negatively correlated with relative humidity(P<0.05).The principal component analysis summarized the six climate indicators into two comprehensive factors,namely,the temperature directly affecting the SPAD value of leaves,and the relative humidity and sunshine duration indirectly affecting the SPAD value of leaves.In terms of greening application,the five evergreen plants performed well in the late autumn and early winter period in Taiyuan.This study can provide a reference for the selection,configuration,maintenance and management of green plants in Taiyuan.

关 键 词：SPAD 植物 太原市 入冬期 

分 类 号：S688[农业科学—观赏园艺]