文献类型：期刊文献

中文题名：濒危植物厚朴种子萌发特性研究

英文题名：Seed germinating characteristics of endangered plant Magnolia officinalis

作者：舒枭[1,2] 杨志玲[1] 段红平[2] 杨旭[1] 于华会[1]

第一作者：舒枭

机构：[1]中国林业科学研究院亚热带林业研究所;[2]云南农业大学资源与环境学院

年份：2010

期号：4

起止页码：419-422

中文期刊名：中国中药杂志

外文期刊名：China Journal of Chinese Materia Medica

收录：MEDLINE(收录号：20450036);CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；PubMed;

基金：国家科技部公益性林业专项(200704022)

语种：中文

中文关键词：濒危植物;厚朴;种子;萌发特性;光照;温度

外文关键词：endangered plant Magnolia officinalis seed germinating characteristics light temperature

分类号：R972.6;R282.21

摘要：目的:找出厚朴种子发芽的最佳基本适宜条件,从而为厚朴的规范化栽培提供一定的依据。方法:通过室内模拟试验,采用光照、温度、土壤含水量、不同水温浸种处理研究了不同处理对厚朴种子发芽率的影响。结果与结论:光照和黑暗处理的种子发芽率有显著差异,种子萌发表现为光敏性。在20～35℃,厚朴种子都能萌发,但萌发适宜温度为25,30℃,在此温度下的发芽率分别为59.2%,54.6%,最适温度为30/20℃变温,最大发芽率为65%。种子萌发最适宜土壤含水量为25%,发芽率为66.7%,萌发的适宜含水量在20%～25%。为改善种皮透水性,分别用40,60,80,90℃的温水浸种10 min,60℃温水浸种效果最好,并能有效地降低硬实率。水温过高会使种子发芽率受抑制。不同发芽基质对种子的发芽率有显著影响。
Objective： To find out the optimal condition for the germination and cultivation condition on Magnolia officinalis,and offer the basis for standardized culture of M.officinalis.Method： The study was carried out with in-door experiment,using light,temperature,soil water content and seed soaking in different water temperature treatments,the effects of different treatments on seed germination percentage of M.officinalis were investigated.Result and Conclusion：The germination percentage between light and dark treatments was significantly difference,it is indicated that the seed is light-sensitive.M.officinalis can germinate in a wide range of temperature,from 20℃ to 35℃,and the suitable temperature was 25-30 ℃,at which germination percentages were 59.2% and 54.6%.Germination percentage at 20/30 ℃ was 65%.The optimum soil water content was 25% for seed germination,at which germination percentages were 66.7%,The suitable soil water content was 20%-25%.In order to find out optimal temperature for soaking,seeds were soaked in water at the temperatures of 40,60,80,90 ℃ for 10 minutes.The optimum water temperature was 60 ℃ for seed germination,and hard coated seed percentage was reduced.Seed germination rate can be inhibited under too high water temperature.Seed germination percentage was significantly difference in different germinating bed.