36份藜麦种质资源苗期耐盐碱性评价与筛选
Evaluation and Screening of Salt-alkali Tolerance of 36 Chenopodium quinoa Willd.Germplasm Resources at the Seedling Stage
刘建霞 1王小楠 2薛乃雯 1张永芳 1李凤 1温日宇3
作者信息
- 1. 山西大同大学农学与生命科学学院,山西大同 037009;山西大同大学设施农业技术研发中心,山西大同 037009
- 2. 山西大同大学农学与生命科学学院,山西大同 037009
- 3. 山西农业大学玉米研究所,山西忻州 034000
- 折叠
摘要
为探究不同藜麦种质苗期耐盐碱性差异,本研究对36份藜麦种质苗期用150 mmol/L盐碱浓度(NaCl∶NaHCO3=4∶1)进行胁迫处理,对株高、叶面积和叶片相对含水量等11个指标进行了测定,采用主成分分析等多种统计方法,筛选出适宜山西地区生长的藜麦种质.结果表明,盐碱胁迫下,藜麦种质各类指标相互之间均存在一定程度的关联;本试验中共提取5个主成分因子,方差累积贡献率为74.947％,可以代替11个指标的绝大部分信息,显示盐碱胁迫下藜麦苗期的抗盐碱特性,并且计算出耐盐碱性综合评价D值,并基于D值进行聚类分析,将36份种质资源分为四个大类,包括高耐盐碱种质5份、耐盐碱种质14份、弱耐盐种质11份、盐碱敏感种质共6份.
Abstract
In order to explore the differences in salt-alkali tolerance of different Chenopodium quinoa Willd.germplasm at the seedling stage,36 Chenopodium quinoa Willd.germplasms were treated with 150 mmol/L salt-alkali concentration(NaCl∶NaHCO3=4∶1)at seedling stage.11 indexes,including plant height,leaf area and leaf relative water content,were determined by principal component analy-sis and other statistical methods.The germplasms of Chenopodium quinoa Willd.suitable for growth in Shanxi Province was screened.The results showed that there was a certain degree of correlation among various indexes of Chenopodium quinoa Willd.germplasms under saline-alkali stress.A total of 5 principal component factors were extracted in this experiment,and the cumulative contribution rate of variance was 74.947％,which could replace most of the information of 11 indicators,showing the saline-alkali resistance characteristics of Chenopodium quinoa Willd.seedling under saline-alkali stress.Moreover the D value of comprehensive evaluation of saline-alkali resistance was calculated,and based on the D value,the 36 germplasm resources were divided into 4 categories.There were 5 high saline-alkali tolerant germplasms,14 saline-alkali tolerant germplasms,11 weakly saline-toler-ant germplasms and 6 saline-alkali sensitive germplasms.
关键词
藜麦/耐盐碱性/种质筛选/主成分分析/聚类分析Key words
Chenopodium quinoa Willd./salt-alkali resistance/germplasm screening/principal component analysis/cluster analysis引用本文复制引用
基金项目
山西省基础研究计划(20210302124068)
山西省回国留学人员科研项目(2021-145)
山西农业大学生物育种工程工程项目(YZGC070)
出版年
2024
国家科技期刊平台
NSTL
万方数据