| 白三叶和高羊茅不同品种对萝卜幼苗的化感作用 |
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| 引用本文： | 朱旺生,沈益新.白三叶和高羊茅不同品种对萝卜幼苗的化感作用[J].南京农业大学学报,2004,27(1):28-31. |
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| 作者姓名： | 朱旺生 沈益新 |
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| 作者单位： | 南京农业大学动物科技学院,江苏,南京,210095 |
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| 基金项目： | 教育部高等学校骨干教师资助项目 (E2 0 0 0 11) |
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| 摘 要： | 用白三叶(Trifolium repens)和高羊茅(Festuca arundinacea)的水浸提液进行萝卜(Raphanus sativus)种子发芽和幼苗生长试验，比较了白三叶和高羊茅种间及白三叶海发(Haifa)、铺地(Persistent)、威亚(Huia)、瑞德(Rivendai)4个品种和高羊茅威加斯(Vegas)、法恩(Fawn)、巴比伦(Babilan)3个品种间的化感作用差异，并初步探讨了白三叶和高羊茅对萝卜幼苗生长的化感抑制机制。结果表明，所用品种的水浸提液对萝卜种子的发芽率、幼苗生长均有明显的抑制作用；白三叶的抑制作用大于高羊茅，且品种间存在显差异。化感物质进一步的试验表明，白三叶和高羊茅释放的酚类能显抑制萝卜幼苗细胞的生长。
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| 关 键 词： | 白三叶 高羊茅 品种 萝卜 幼苗生长 化感作用 种子发芽 抑制作用 |
| 文章编号： | 1000-2030(2004)01-0028-04 |
| 修稿时间： | 2003年2月28日 |
A study on allelopathic potential of white clover and tall fescue on seedling of radish |
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| ZHU Wang sheng,SHEN Yi xin.A study on allelopathic potential of white clover and tall fescue on seedling of radish[J].Journal of Nanjing Agricultural University,2004,27(1):28-31. |
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| Authors: | ZHU Wang sheng SHEN Yi xin |
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| Abstract: | Allelopathic inhibition of seed germination and seedling growth of radish( Raphanus sativus )treated with white clover( Trifolium repens )and tall fescue( Festuca arundinacea )extracts were studied.The difference of allelopathic potential among species and variety and the mechanism of the allelopathy of white clover and tall fescue were preliminarily discussed.The results indicated that extracts from all varieties significantly inhibited seed germination and seedling growth of radish.Allelopathic inhibition of white clover on radish seedling was stronger than that of tall fescue,and there was obvious difference among different varieties.At cell level,a further study on allelochemicals showed that phenolics released from white clover and tall fescue remarkably inhibited cell growth of radish seedling. |
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| Keywords: | white clover tall fescue allelopathy phenolics radish seedling growth inhibition |
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