摘要
目的 :探讨大蒜根尖高分裂指数的优化条件。方法 :采用恢复培养、未恢复培养两种方法培根 ,分别按同一根尖长度不同时间及同一时间不同根尖长度取材。结果 :未恢复培养组根长 2 cm～ 4 cm,恢复培养组根长 2 cm～ 5 cm,于上午 8时或下午 2时取材有丝分裂指数最高。结论 :大蒜根尖有丝分裂指数与根尖长度、取材时间有关。
Objective:To investigate the optimum condition of Allium sativum L.of the high mitotic index of root-tip.]Methods:Resumptive cultivating method and unresumptive cultvating methods were used.Fetch materials by the length of the same root-tip,at different time and the same time from the different lenth roots.Results:The root length of unresumptive cultivation group is 2cm～4cm and the lenth of the other is 2cm～5cm.The highest mitotic index is at 8 oclock(a.m) and 2 oclock(p.m).Conclusion:Allium sativum L. mitotic index corralats with the root-tip length and the time of fetching material.
出处
《承德医学院学报》
2002年第4期269-272,共4页
Journal of Chengde Medical University
关键词
大蒜
有丝分裂指数
根长
取材时间
Allium sativum L
Mitosis
Mitotic indexMethods:Resumptive cultivating method and unresumptive cultvating methods were used.Fetch materials by the length of the same root-tip,at different time and the same time from the different lenth roots.Re
