安徽农业科学2024，Vol.52Issue(12)：28-33,6.DOI:10.3969/j.issn.0517-6611.2024.12.002
NaCl和NaHCO3胁迫对冬黑麦种子萌发的影响
Effects of NaCl and NaHCO3 Stress on Seed Germination of Winter Rye
摘要
Abstract
[Objective]To explore the salt and alkali tolerance of winter rye varieties.[Method]We used 10 neutral salts(NaCl)with differ-ent gradient concentrations(50,100,150,200,250,300,350,400,450,500 mmol/L)by the method of NaCl∶NaHCO3=1∶1 with BK01 as the research materials.[Result]Germination rate,germination potential,germination index,root length,root weight,seedling weight and vigor index of all treatments decreased with the increase of NaCl concentration.SOD activity decreased first,then increased and then decreased with the increase of sodium salt concentration,while POD and CAT activities increased first and then decreased.Using seed germination rate as the optimum concentration index of sodium salt stress,the semi-lethal concentration of winter rye seeds to neutral salt(NaCl),alkaline salt(NaH-CO3)and saline-alkali mixture(NaCl∶NaHCO3=1∶1)was determined by linear regression 408.69,251.07,298.27 mmol/L.According to the comprehensive score of membership function method,the resistance of winter rye seeds to three kinds of sodium salt stress was in the order of neutral single salt(NaCl)＞salt alkali mixture(NaCl∶NaHCO3 molar ratio 1∶1)＞alkaline single salt(NaHCO3).[Conclusion]Under the same Na concentration,NaHCO3 solution had stronger inhibition on seed germination than NaCl.关键词
冬黑麦/钠盐胁迫/种子Key words
Winter rye/Sodium salt stress/Seed分类
农业科技引用本文复制引用
孙墨可,郭来春,张啸,加央多拉,吴晗,王春龙,李春花,李晗,杨保仑,邓宇,李颖慧,马飞跃,王新颖,何峰..NaCl和NaHCO3胁迫对冬黑麦种子萌发的影响[J].安徽农业科学,2024,52(12):28-33,6.基金项目
国家现代农业产业技术体系项目(CARS-07). （CARS-07）
