| 部分CIMMYT小麦种质的耐盐性鉴定与评价 |
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| 引用本文： | 宫文萍,李洪振,付希强,李豪圣,韩 冉,刘 成,刘建军.部分CIMMYT小麦种质的耐盐性鉴定与评价[J].麦类作物学报,2018(9):1065-1071. |
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| 作者姓名： | 宫文萍 李洪振 付希强 李豪圣 韩 冉 刘 成 刘建军 |
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| 作者单位： | （1.山东省农业科学院作物研究所/农业部黄淮北部小麦生物学与遗传育种重点实验室/小麦玉米国家工程实验室，山东济南 250100； 2.武城县农业局，山东武城 253300； 3.山东汇邦渤海农业开发有限公司，山东东营 257090； 4.山东师范大学生命科学学院，山东济南 250100） |
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| 基金项目： | 山东省自然科学基金项目（ZR2017MC004）；山东省自主创新重大关键技术课题（2015ZDJS03001-1）；国家重点研发计划项目（2017YFD0100600） |
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| 摘 要： | 为了筛选耐盐小麦新种质，以耐盐小麦品种青麦6号为对照，分别在小麦苗期以相对盐害指数、芽期以根系盐害易感指数和相对苗长为鉴定和评价指标，对选自国际玉米小麦改良中心（CIMMYT）的417份小麦材料进行耐盐性筛选与鉴定。结果显示，有39份小麦种质的耐盐性优于对照，经相关分析和主成分分析发现，总根长SSI值可作为根系耐盐指标用于耐盐性综合评价；结合总根长SSI值、盐害指数和相对苗长的隶属函数综合值进行聚类分析发现，cm58、cm163、cm439和cm440 四份小麦种质的耐盐性优于对照青麦6号，是研究小麦耐盐性和培育耐盐小麦新品种的优异材料。
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| 关 键 词： | 小麦 苗期 芽期 耐盐鉴定 聚类分析 |
Identification and Evaluation of Salinity Tolerance in Some CIMMYT Wheat Germplasm |
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| GONG Wenping,LI Hongzhen,FU Xiqiang,LI Haosheng,HAN Ran,LIU Cheng,LIU Jianjun.Identification and Evaluation of Salinity Tolerance in Some CIMMYT Wheat Germplasm[J].Journal of Triticeae Crops,2018(9):1065-1071. |
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| Authors: | GONG Wenping LI Hongzhen FU Xiqiang LI Haosheng HAN Ran LIU Cheng LIU Jianjun |
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| Abstract: | In order to obtain salt tolerant wheat germplasm for the genetic analysis and breeding salt-tolerant wheat variety,using the local salt-tolerant variety Qingmai 6(QM 6) as the control genotype,a total of 417 wheat germplasm introduced from International Maize and Wheat Improvement Center(CIMMTY) were screened for their tolerance to salt at the germination stage using relative salt injury rate and seedling stage using root salt sensitive index(SSI) and relative seedling length as the identification and evaluation indices.As a result,the salt tolerance of 39 accessions was better than that of QM6.Through correlation analysis and principal component analysis,it was found that the total root length SSI value could be used as the salt tolerance index for the comprehensive evaluation.Cluster analysis by using SSI of the total root length,relative salt injury and relative seedling length showed that the salt tolerance of accessions cm58,cm163,cm439 and cm440 was superior to that of the control line QM6.Hence,these four accessions are excellent candidate lines for the follow-up salt tolerance studies. |
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| Keywords: | Wheat Germination stage Seedling stage Salinity tolerance identification Cluster analysis |
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