豇豆品种在盐胁迫下叶片叶绿素荧光特性聚类分析  

Cluster Analysis of Chlorophyll Fluorescence Characteristics of Vigna unguiculata Varieties under Salt Stress

作　　者：胡志辉 梁晓平 田巧君 安琪 汪艳杰 龚祖运 HU Zhihui;LIANG Xiaoping;TIAN Qiaojun;AN Qi;WANG Yanjie;GONG Zuyun(College of Life Sciences,Jianghan University,Hubei Province Engineering Research Center for Legume Plants,Wuhan 430056,China;Wuhan Huangpi District Agricultural Information Center,Wuhan 430300,China)

机构地区：[1]江汉大学生命科学学院,湖北省豆类(蔬菜)植物工程技术研究中心,武汉430056 [2]武汉市黄陂区农业信息中心,武汉430300

出　　处：《种子》2024年第7期36-44,共9页Seed

基　　金：武汉市科技局产学研专项项目(2023110201030663);湖北省教育厅百校联百县-高校服务乡村振兴科技支撑行动计划(BXLBX0366);江汉大学校级科研项目;武汉市教育局高校产学研项目(CXY202201)。

摘　　要：以50个豇豆品种为试验材料,设置ck、NaCl、EBR与EBR+NaCl组等4个处理,于7 d后测量叶片叶绿素荧光参数,研究各处理下豇豆幼苗的叶片荧光特性。主成分分析表明,Y(Ⅱ)、Fv/Fm和Y(NO)可以代表豇豆的13个荧光参数。聚类分析结果显示,50个豇豆品种聚为Ⅰ类、Ⅱ类、Ⅲ类,Ⅰ类有46个品种,Ⅱ类有2个品种,Ⅲ类有2个品种;其中Ⅱ类的668绿条和豇豆WJ-60的Y(Ⅱ)与Fv/Fm值最高,Y(NO)值最低,表明光合作用效率高,光损伤程度低,是较为理想的豇豆品种;而Ⅲ类的青条和花荣的Y(Ⅱ)与Fv/Fm值最低,Y(NO)值最高,表明光合作用效率低,光损伤程度高。同时EBR对豇豆叶绿素荧光特性有影响,因品种不同而存在差异。The chlorophyll fluorescence parameters of 50 Vigna unguiculata seedlings were measured after 7 days with ck, NaCl, EBR and EBR+NaCl treatments. The leaf fluorescence characteristics of Vigna unguiculata seedlings under each treatment were studied. Principal component analysis showed that Y(Ⅱ), F_(v)/F_(m) and Y(NO) could represent 13 fluorescence parameters of Vigna unguiculata. The results of cluster analysis showed that 50 Vigna unguiculata varieties were grouped into classⅠ, Class Ⅱ and Class Ⅲ. There were 46 varieties in class Ⅰ, 2 varieties in class Ⅱ and 2 varieties in class Ⅲ. Among them, the Y(Ⅱ) and F_(v)/F_(m) values of 668 green stripe and WJ-60 were the highest and the Y(NO) values were the lowest, indicating that the photosynthesis efficiency was high and the light damage degree was low, so they were ideal varieties. The Y(Ⅱ) and F_(v)/F_(m) values were the lowest and Y(NO) values were the highest, indicating low photosynthetic efficiency and high degree of light damage. At the same time, EBR had an effect on chlorophyll fluorescence characteristics of, which was different with different varieties.

关 键 词：豇豆 荧光参数 主成分分析 聚类分析 

分 类 号：S643.4[农业科学—蔬菜学]