Growth, development and ions distribution of three halophytes under salt sress
NaCl胁迫下3种盐生植物生长发育及离子在不同器官分布特性研究

The growth,development and ions distribution in different parts of halophyte plants(Suaeda salsa,Suaeda glauca and Atriplex Centralasiatica) were studied in pot experiment.The results show that the seedling emergency rate decreases significantly,while the shoot and inflorescence length increase significantly with the increase of soil salt(NaCl) content.There is a good correlativity between the seedling emergency rate or inflorescence length and the soil salt contents.Sodium content in leaves increases with the increase of soil salt content,while other ion contents decrease slightly or do not change.Ions contents in stem are stable for Suaeda salsa and Suaeda glauca.In general,the contents of ions are in the order: sodium>potassium/ magnesium>calcium;while ions content in leaves is higher than that in stem.