摘要
用ＮａＣｌ、ＫＣｌ、ＮａＮＯ３和ＫＮＯ３处理碱蓬（Ｓｕａｅｄａｓａｌｓａ）和玉米（Ｚｅａｍａｙｓ）幼苗，发现ＮａＣｌ胁迫引起Ｋ＋、Ｃａ２＋、Ｍｇ２＋、Ｆｅ２＋、Ｚｎ２＋、ＮＯ－３等必需元素的含量降低．认为ＫＣｌ和ＫＮＯ３处理引起碱蓬幼苗幼叶黄化的主要原因是Ｎａ＋的缺乏；ＫＣｌ处理引起玉米和碱蓬幼苗的干枯死亡主要是由于植物体内高浓度Ｃｌ－引起的；Ｎａ＋是引起盐生植物碱蓬叶片肉质化的重要因子；
The effects of Na +、K + and Cl - on the absorption of ions were compared by using the seedlings of Suaeda salsa and Zea mays with the treatments of NaCl、KCl、NaNO 3 and KNO 3,The contents of K +、Ca 2+ 、Mg 2+ 、Fe 2+ 、Zn 2+ 、NO - 3 decreased under NaCl stress.The reason of causing etiolation of Suaeda salsa seedlings was the deficiency of sodium.The death of Suaeda salsa and Zea mays seedlings were caused by the high concentration of Cl -.Na + was the major factor of causing succulence of Suaeda salsa leaves,and Cl - was relative to the growth of Suaeda salsa.
出处
《山东师范大学学报（自然科学版）》
CAS
1998年第4期437-440,共4页
Journal of Shandong Normal University(Natural Science)
基金
国家自然科学基金
