不同油葵品种种子萌发期的耐盐性研究  

Salt Tolerance of Helianthus Varieties at Germination Stage

作　　者：穆俊丽[1] 李建科[2] 杨静慧[2] 付志芳 桂毓[2] 何斌琼[4] 刘太林[2] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨凌712100 [2]天津农学院园艺系,天津300384 [3]天津市河西区绿化监理所,天津300061 [4]西南大学园艺学院,重庆400716

出　　处：《北方园艺》2009年第5期26-30,共5页Northern Horticulture

基　　金：天津市科技支撑计划重点资助项目(072CKFNC01100;08ZCKFNC01200);天津市农业科技成果转化与推广资助项目(0504018);天津农学院科学研究发展基金计划资助项目(2007)

摘　　要：在不同NaCl浓度(0.05、0.1、0.15、0.2、0.25、0.3、0.35 mol/L)处理下,测算8个品种油葵种子的发芽率、相对发芽率、发芽势、发芽指数、相对胚芽长度。用耐盐浓度、耐盐半致死浓度、耐盐极限浓度进行耐盐性分析,并采用模糊数学隶属函数法进行综合评价。在盐胁迫下,总体趋势是随盐浓度的增加,各品种油葵种子的发芽率、发芽势、发芽指数和胚根长度均呈下降趋势,不同品种对盐胁迫的反应不同。结果表明:油葵具有较强的耐盐性,8个品种的油葵耐盐性强弱的排列顺序:567DW>658>瑞特姆>新葵杂4号>欧洲油葵>F53油葵>F57油葵>条山。研究8个油葵品种种子萌芽期耐盐性,为选育优良抗盐品种提供理论依据。With different NaC1 concentration （which were 0. 05, 0.1, 0. 15, 0.2, 0.25, 0.3, 0.35 mol/L）, the germination percentage, the relative germination percentage, seed potentiality, germination index, the relative root length were calculated. The salt-tolerance characteristic and membership function for a comprehensive evaluation were researched with salt concentration, semi-lethal salt concentration, the limit salt concentration. Under the condition of salt stress, the overall trend was that the germination percentage, seed potemiality, germination index and root growth of different Helianthus seeds had declined with increasing salt content. The reaction of different varieties was different under salt stress. The results showed that salt-tolerance character of Helianthus was stronger. The salt-tolerance order of eight va- rieties of Helianthus was：567DW 〉658〉RuiTeMu ）XinZaKui4Hao〉Europe Helianthus〉F53Helianthus〉F57 Helianthus 〉TiaoShan. The research on germination with salt tolerance of eight Helianthus varieties could provide a theoretic basis to breed excellent salt-resistant varieties.

关 键 词：油葵 盐胁迫 耐盐性 耐盐半致死浓度 耐盐极限浓度 

分 类 号：S565.9[农业科学—作物学]