摘要
NaCl、Na2SO4、NaHCO3和Na2CO3按不同比例混合,模拟盐度和pH变化规律与天然盐碱地相似的15种盐碱条件,探讨混合盐碱胁迫对芹菜(Apium graveolens)种子萌发的影响。结果表明:芹菜种子的发芽率、发芽势、发芽指数和活力指数均随盐浓度的升高,pH的增大呈下降趋势。芹菜种子的萌发主要受盐浓度的影响,不同盐浓度间的影响差异大;当盐浓度为200 mmol/L时,基本不萌发。
The germination rate and the germination index of celery seeds under the complex saline-alkali stress of NaCl,Na2SO4,NaHCO3,and Na2CO3 were observed.The results showed that the celery seed germination rate,germination energy,germination index,and vigor index decreased with the pH and salt concentration increased.The correlation between the germination index and the salt concentration was greater than that of the pH.Effects of low concentration salinity stress on celery seed germination were smaller,the celery seed germination was seriously affected by high concentration salt and alkaline.
出处
《生物加工过程》
CAS
CSCD
2012年第1期63-66,共4页
Chinese Journal of Bioprocess Engineering
基金
上饶师范学院科研基金资助项目(1205)
关键词
碱性的
芹菜
萌发
盐碱
胁迫
alkali
celery
germination
saline
stress
