| 火炬树根和凋落叶水浸提液对小麦种子萌发的化感作用 |
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| 引用本文： | 闫兴富,周云峰,杜茜.火炬树根和凋落叶水浸提液对小麦种子萌发的化感作用[J].种子,2011,30(5). |
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| 作者姓名： | 闫兴富 周云峰 杜茜 |
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| 作者单位： | 1. 北方民族大学生物科学与工程学院,宁夏银川750021;国家民委生态系统模型及应用重点实验室,宁夏银川750021
2. 北方民族大学生物科学与工程学院,宁夏银川,750021 |
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| 基金项目： | 国家民委生态系统模型及应用重点开放实验室资助项目 |
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| 摘 要： | 研究了不同浓度(10%、5%、2.5%和1.7%)的火炬树(Rhus typhina)根和凋落叶水浸提液对小麦种子萌发的化感作用.结果表明:2种器官水浸提液对小麦种子萌发均具有强烈的化感抑制作用,表现为萌发率、萌发指数、幼苗活力指数的降低和萌发进程的延迟(萌发速率系数增大),而且具有明显的浓度作用:火炬树凋落叶水浸提液对小麦种子萌发的化感作用强于根的化感作用;火炬树根和凋落叶水浸提液对小麦种子萌发指数的化感作用最强,对幼苗活力指数的化感作用次之,对萌发速率系数的化感作用最弱.
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| 关 键 词： | 火炬树 水浸提液 小麦 种子萌发 化感作用 |
Allelopathic Effects of Water Extraction from Root and Leaf Litter of Rhus typhina on the Germination of Wheat Seeds |
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| YAN Xing-fu,ZHOU Yun-feng,DU Qian.Allelopathic Effects of Water Extraction from Root and Leaf Litter of Rhus typhina on the Germination of Wheat Seeds[J].Seed,2011,30(5). |
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| Authors: | YAN Xing-fu ZHOU Yun-feng DU Qian |
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| Institution: | YAN Xing-fu1,2,ZHOU Yun-feng1,DU Qian1,2(1.College of Biological Science and Engineering,Northern University for Nationalities,Ningxia Yinchuan 750021,China,2.Key Laboratory of Ecosystem Model and Applications,State Nationalities Affairs Commission,Ningxia Yinchuan,750021,China) |
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| Abstract: | The allelopathic effects of different concentration(10%,5%,2.5% and 1.7% respectively) of water extraction from root and leaf litter of Rhus typhina on the germination of wheat seeds were investigated.The results indicated that the germination of wheat seeds was significantly inhibited by the water extractions from both root and leaf litter of R.typhina.The decrease of germination percentage,germination index and vigor index,the delay of germination course(increase of coefficient of germination rate) and ev... |
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| Keywords: | Rhus typhina water extraction wheat seed germination allelopathy |
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