NaCl和NaHCO_3胁迫对荞麦种子萌发的影响  

Effect of the NaCl and NaHCO_3 Stress on the Seeds Germination of Fagopyrum esculentum

作　　者：裴毅[1] 祁欣[2] 刘芳 王蔺平 聂江力[1] 杨雪君[1] 张伟[1] 毛金枫 

机构地区：[1]天津农学院园艺园林学院,天津300384 [2]天津市农业技术推广站,天津300060 [3]天津市翠屏湖科学园,天津301908

出　　处：《种子》2016年第11期13-18,共6页Seed

基　　金：天津市科技计划项目(编号:13ZLZLZF 05700);天津市科技计划(科技特派员)项目(编号:15JCTPJC 59500);国家自然科学基金项目(编号:31100401)

摘　　要：采用单盐胁迫的方法,研究NaCl和NaHCO3胁迫及解除胁迫对荞麦种子萌发的影响,探讨荞麦种子的耐盐碱能力。结果表明,随着NaCl和NaHCO3浓度的增加,种子发芽率、发芽势、相对发芽率、胚根长、苗鲜重总体呈下降趋势;NaCl胁迫下荞麦种子萌发的耐盐浓度、半数抑制浓度、极限浓度分别为17.693‰、19.703‰、21.713‰;NaHCO3胁迫下荞麦种子萌发的耐盐浓度、半数抑制浓度、极限浓度分别为13.098‰、16.938‰、20.777‰;清水复萌试验表明,荞麦种子经NaCl胁迫后的复萌率随浓度的增加而增加;荞麦种子经NaHCO3胁迫后复萌率为0。In order to investigate salinity resistance of Fagopyrum esculentum,by using single salt stress method,effect of NaCl and NaHCO3 stress on seeds germinations of F.esculentum and salt stress recovery were studied.The results showed that with increasing of NaCl and NaHCO3,germination rate,germination potential,the relative germination rate,radicle length,seedling fresh weight of F.esculentum were reduced.The salt tolerance concentration,half inhibition concentrations and limiting concentration of NaCl stress on F.esculentum were 17.693‰、19.703‰、21.713‰;The salt tolerance concentration,half inhibition concentrations and limiting concentration of NaHCO3 stress on F.esculentum were 13.098‰、16.938‰、20.777‰;After the stress being removed,recovery germination rate of NaCl stress on F.esculentum was increased with NaCl concentrations increasing.The recovery germination rate of NaHCO3 stress was 0%.Therefore,F.esculentum seeds had certain salinity and alkali resistance.

关 键 词：荞麦 种子 NACL NAHCO3 胁迫 

分 类 号：S517[农业科学—作物学]