| 何淑玲，马令法，杨敬军，常毓巍.不同环境因子对药用植物藏木香
种子萌发的影响[J].广东农业科学,2013,40(23):12-15 |
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不同环境因子对药用植物藏木香
种子萌发的影响 |
| Effects of different treatment on seed germinationof medicinal plants Inula helenium I. |
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| DOI： |
| 中文关键词: 温度 光照 浸泡 藏木香 开始萌发时间 萌发持续时间 发芽率 |
| 英文关键词: temperature light Soaking Inula helenium I. initial germination time duration germination time germination percentage |
| 基金项目:国家星火计划项目(2010GA860031)；甘肃省教育厅项目(1112B-05)；甘肃省星火计划项目(0910XCXP053) |
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| 摘要点击次数: 1447 |
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| 中文摘要: |
| 以3年生藏木香母株上所采种子为材料袁采用随机区组法袁通过对不同温度尧光照和浸泡时间对其种子
萌发影响的研究袁探索其种子萌发特征遥结果表明院在恒温20 益尧全光照24 h和浸泡4 d的处理条件下藏木香种子
发芽率最高袁发芽启动速度最快袁发芽持续时间最短袁萌发整齐度较高曰变温10/30益下的各萌发指标仅次于恒温
20益袁全暗24 h条件下不抑制其萌发袁发芽率仍达到80%以上袁清水浸泡时间越长袁胚芽和胚根生长越快遥综合温度尧
光照和水分各生态因子对藏木香种子萌发特性的影响得出袁藏木香种子在连续光照24 h尧恒温20益或变温10/30益尧
清水浸泡4 d的条件下萌发情况最好曰藏木香种子属中性偏喜光的种子遥 |
| 英文摘要: |
| In order to explore the germination characteristics of Inula helenium I., a germination experiment on seeds collected from triennial plants(mother plants of the Inula helenium I.）was conducted by using a randomized block method at different temperature, light conditions and soaking time. The results showed that germination rate of the seeds was highest and germination starting speed was also fastest, as well as duration germination time was not only shortest but also germination uniformity was higher under handling conditions of a constant temperature 20℃, full light of 24 h and soaking 4 d. The all germination indexes at variable temperature 10/30℃were only inferior to constant temperature 20益. It did not only inhibit the germination but also the germination rate was still more than 80% at 24 h completely dark conditions. The longer the seeds were soaked for in water, the faster germ and radicle grew. Therefore, the conclusion which seed germination of Inula helenium I. was best under continuous 24 h light, the constant temperature 20℃or the variable temperature 10/30益and soaking 4 d in the water was drawn through integrating ecological factors such as temperature,
light and moisture. And seeds of Inula helenium I. were neutral and tended to be light. |
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