ZHOU Xiu-mei,GUAN Xiao-wan,FENG Xiao-yan,et al.Allelopathy of Aqueous Extracts from Different Up-ground Organs of Perilla frutescens on Elsholtzia cypriani[J].Northern Horticulture,2012,36(22):50-53.
紫苏地上器官水浸液对野草香的化感作用
- Title:
- Allelopathy of Aqueous Extracts from Different Up-ground Organs of Perilla frutescens on Elsholtzia cypriani
- 文章编号:
- 1001-0009(2012)22-0050-04
- 分类号:
- S 688.9
- 文献标志码:
- A
- 摘要:
- 为探明紫苏地上器官水浸液对野草香的化感作用,以风干的紫苏茎、叶、花序为供体,野草香种子为受体,按照A×B=3×5二因素有重复完全随机试验设计,用实验室生物测定法测定了受体的发芽率、成苗率、发芽指数、胚根长度和胚轴长度5项指标,计算了化感效应指数和化感综合效应。结果表明:浓度相同时,紫苏茎、叶、花序水浸液对受体的化感抑制作用表现出“叶=花序>茎”的强弱顺序;器官相同时,紫苏水浸液对受体的化感抑制作用表现为随浓度的升高而增强;试验的各处理对受体5项指标的化感抑制作用强弱顺序为胚根长度>发芽指数>成苗率>胚轴长度>发芽率。
- Abstract:
- In order to discover the allelopathy of aqueous extracts from different up-ground organs of Perilla frutescens on Elsholtzia cypriani,taking the dry stems,leaves and inflorescences as donors and the seeds of E.cypriani as recipients,the experiment was designed as A×B=3×5 factorial and arranged randomly,the five indexes,such as germination rate,seedling rate,germination index,radicle length and embryonal length,were determined by bioassay methods and the response index (RI) and synthesis effect (SE) were also calculated.The results showed that the allelopathic inhibition effects of aqueous extracts from leaves and inflorescences were stronger than it from the stems for the same concentrations of aqueous extracts,for the same organ,the allelopathic inhibition effects were stronger with rising of the concentration,and the order from the strongest to the weakest of allelopathic inhibition effects on the five indexes were radicle length,germination index,seedling rate,embryonal length and germination rate.
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备注/Memo
第一作者简介:周秀梅(1966-),女,博士,副教授,研究方向为芳香植物资源开发与利用,现主要从事园林植物与观赏园艺的教学和科研工作。E-mail:zxm@hist.edu.cn.基金项目:河南科技学院2008年度高层次人才科研资助项目(08012);河南科技学院大学生课外科技活动创新基金资助项目(20110735)。