【作者】 李心文； 王树彦； 李景欣；

【Author】 Li Xinwen Wang Shuyan Li Jingxin(Inner Mongolia Agricultural University, Agronomy College, Huhhot, Inner Mongolia, 010018; Inner Mongolia Nationality university, Agronomy college, Tongliao , Inner Mongolia, 028042)

【机构】 内蒙古农业大学农学院； 内蒙古民族大学农学院；

【摘要】 在仿自然盐土成分配制的复盐溶液中,测定了红花根系对Na+、K+的选择吸收;盐胁迫下红花叶Na+、K+含量变化,测定不同红花品种组培芽苗组织外渗率,及在透射电镜下红花根系细胞内线粒体、子叶内的叶绿体在复盐胁迫下的破坏程度,证明红花具有不选择性耐盐机理。在盐胁迫下从幼苗、去子叶芽苗、细胞器损伤以及在盐土实地种植测定成株率等研究表明,红花种质耐盐力又受耐盐害性机理的控制。据本项目前试验研究得出红花耐盐性主要是受2种耐盐机理共同控制的认识。更多还原

【Abstract】 Na+ , K+ Concentration in roots and seminal leaf of safflower was tested under the stress of multi-saline solution, which imitates the natural saline soil content. In the same stress, the exosmo-sis rate of the seedling tissue is tested too. The destroying degree of mitochondria in root cell and chloro-plast in seminal leaf cell was detected through the transmission electron microscope. Plant survival rate in saline field was also tested. All the proof shows, the mechanism of salt tolerance of safflower mainly follow the two mechanisms saline - stress tolerance and saline ion selective absorption.更多还原