4种润楠属植物的抗寒性与观赏特性评价  

Evaluation of Ecological Adaptability and Ornamental Characteristics of Four Species of Machilus

作　　者：龙凤英 刘春玲 陈晓娟 费永俊[1] Long Fengying;Liu Chunling;Chen Xiaojuan;Fei Yongjun(College of Horticulture and Landscape Architecture,Yangtze University Jingzhou 434000;Shuangzhu National Forest Farm of Zhuxi County in Hubei Province,Shiyan 442300)

机构地区：[1]长江大学园艺园林学院,荆州434000 [2]湖北省国有竹溪县双竹林场,十堰442300

出　　处：《湖北林业科技》2023年第3期27-37,共11页Hubei Forestry Science and Technology

基　　金：湖北省教育厅科学技术研究项目“miRNA调控浙江楠多胚发生机制研究”(Q20191309);湖北省科技支撑计划项目“湖北珍贵树种楠木种质资源收集评价与高效栽培研究”(2013BBB24);湖北省教育厅指导性项目(B2015444);湖北省自然科学基金“湖北省润楠属植物的资源评价及种质创新”(2014CFB264、2017CFB390);竹溪县双竹林场合作项目“竹溪县楠木种质资源的收集、保育驯化与推广应用研究”(2020H21003)。

摘　　要：为研究润楠属植物的抗寒性,检测了4种润楠属植物在自然低温胁迫下的生理指标:叶绿素、相对电导率(REC)、丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)、游离脯氨酸(Pro)、可溶性蛋白(SP),分析其抗寒性。采用隶属函数法综合评价4种润楠属植物的抗寒性,结果为:宜昌润楠>刨花润楠>红梗润楠>小果润楠。采用层次分析法(AHP)对4种润楠属植物的观赏性进行综合评价,结果为:宜昌润楠>刨花润楠>小果润楠>红梗润楠。In order to study the cold resistance of Machilus plants,the physiological indexes of four species of Machilus under natural low temperature stress were detected:chlorophyll,relative conductivity(REC),malondialdehyde(MDA),superoxide dismutase(SOD),catalase(CAT),peroxidase(POD),free proline(Pro),and soluble protein(SP).The subordination function method was used to comprehensively evaluate the cold resistance of the four species of Machilus.The results were as follows:Machilus ichangnsis>M.pauhoi>M.rufipes>M.macrocarpa.The results of the comprehensive evaluation of the ornamental properties of four species of Machilus by using the analytic hierarchy process(AHP)were as follows:M.ichangnsis>M.pauhoi>M.microcarpa>M.rufipes.

关 键 词：润楠属 低温胁迫 隶属函数法 观赏性评价 层次分析法 

分 类 号：S792.24[农业科学—林木遗传育种]