应用Logistic方程测定四种藤本植物的耐热性  

Heat Resistance of Four Kinds of Vines by Logistic Equation

作　　者：袁雪涛[1,2,3] 夏冬[1,2,3] 许永利[1,2,3] 梁冰[1,2,3] 李富平[1,2,3] 

机构地区：[1]华北理工大学矿业工程学院,河北唐山063000 [2]河北省矿业开发与安全技术重点实验室,河北唐山063000 [3]唐山市矿区生态修复产业技术研究院,河北唐山063000

出　　处：《北方园艺》2017年第14期99-102,共4页Northern Horticulture

基　　金：河北省科技支撑计划资助项目(16234204D);华北理工大学研究生创新基金资助项目(2016B08)

摘　　要：以葎草(Humulus scandens)、五叶地锦(Parthenocissus quinquefolia)、地锦(Parthenocissus inserta)、凌霄(Campsis grandiflora)等植物一年生功能叶片为试材,采用电导法配合Logistic方程对4种藤本植物的耐热性进行研究,以探明不同种类藤本植物对高温的耐受性,为藤本植物在北方城市以及山体的立体绿化提供参考依据。结果表明:4种藤本植物叶片细胞伤害率随着处理温度的升高,呈现"慢-快-慢"的增长趋势,呈典型"S"型,并且4种藤本植物细胞伤害率经显著性检验均符合Logistic方程。4种藤本植物的高温半致死温度介于59.50~64.54℃,其中凌霄的半致死温度最高,达到64.54℃,而葎草的半致死温度最低,为59.50℃,4种植物均具备较好的耐热性。4种植物耐热性由强至弱依次为凌霄、地锦、五叶地锦、葎草。To reveal the different species vine plant tolerance to high temperature,and provide a theoretical and applicatory basis for the vines vegetation in the northern city and mountain,annual function leaf samples（Humulus scandens,Parthenocissus quinquefolia,Parthenocissus inserta,Campsis grandiflora）were selected as experimental materials,heat resistance of four kinds of lianas by using conductance method together with the logistic equation were studied.The results indicated that with the rise of treated temperature,cell hurt rate of leaf segments of four kinds of lianas increased with trend of‘slow-fast-slow＇,showed typical‘S＇curve,the significance test of which fitted logistic equation.Semi-lethal high temperature of four kinds of lianas divides from 59.50 ℃ to64.54 ℃,semi-lethal high temperature of C.grandiflora（64.54℃）was the highest in the four kinds of plant,while H.scandens（59.50℃）was the lowest in the four kinds of plant.The heat resistance of four kinds of plant followed the order：C.grandifloraP.insertaP.quinquefoliaH.scandens.

关 键 词：高温胁迫 藤本植物 电导率 半致死温度 细胞伤害率 LOGISTIC方程 

分 类 号：S687.3[农业科学—观赏园艺]