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La（NO3）3离子对4种苜蓿种子活力与膜透性作用的影响
Effects of La（NO3）3 Ions on Activity and Membrane Permeability in 4 Medic Seeds
【摘要】 以6种La(NO3)3离子浓度处理4种紫花苜蓿种子活力及膜透性进行比较研究,结果表明:当La3+浓度小于600μg/mL时,La3+可促进种子的活力,达900μg/mL时,对膜透性影响最明显.说明经La3+处理后,苜蓿种子活力与膜透性没有直接的影响.膜透性的显著变化,表明La3+在达到最大致死剂量时,膜结构受到了破坏,而La3+对种子活力的影响是综合作用所决定的.
【Abstract】 The medic seeds were soaded in La（NO3）3 solution at 600 μg/mL concentration.Results showed the activity of seeds were promoted and chlorophy contents in the seeds were increased.The medic seeds were soaked in La（NO3）3 solution with concentration of 900 μg/mL,the results showed the membrane permeability were bad.The soaked seeds showed the activity don not relate to the membrane.
【基金】 春晖计划项目[Z2004-1-62038]
- 【文献出处】 西北民族大学学报(自然科学版) ,Journal of Northwest Minorities University for Nationalities(Natural Science) , 编辑部邮箱 ,2005年03期
- 【分类号】Q945.78
- 【被引频次】2
- 【下载频次】62