| 豆科牧草对多花黑麦草化感作用的种间差异 |
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| 引用本文： | 邬彩霞,沈益新,李志华.豆科牧草对多花黑麦草化感作用的种间差异[J].中国草地学报,2005,27(6):39-43. |
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| 作者姓名： | 邬彩霞 沈益新 李志华 |
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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： | 科技部南方农区奶牛现代化生产技术集成与产业化示范项目(2002BA518A12)，江苏省科技厅农业示范推广项目(BC2001371) |
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| 摘 要： | 实验室砂培法检测了红三叶、白三叶、杂三叶、黄花草木樨、紫花苜蓿、红豆草和毛苕子等7种豆科牧草茎叶及根的10%水浸提液处理对多花黑麦草种子萌发和幼苗生长的化感作用,结果表明:供试豆科牧草茎叶和根的水浸提液处理对多花黑麦草种子发芽势和幼苗根的生长均有显著(p<0.05)的化感抑制作用;10%水浸提液处理对多花黑麦草幼叶伸长无显著(p>0.05)影响,但对幼叶的干物质积累具有抑制作用;豆科牧草对多花黑麦草幼苗生长的化感作用在作用强度和作用机制两方面存在显著的种间差异。
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| 关 键 词： | 豆科牧草 浸提液 化感抑制 发芽 幼苗生长 |
| 文章编号： | 1000-6311(2005)06-0039-05 |
| 修稿时间： | 2005年3月31日 |
Differences of Allelopathic Effect of Different Forage Legumes on Italian Ryegrass |
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| WU Cai-xia,SHEN Yi-xin,LI Zhi-hua.Differences of Allelopathic Effect of Different Forage Legumes on Italian Ryegrass[J].Chinese Journal of Grassland,2005,27(6):39-43. |
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| Authors: | WU Cai-xia SHEN Yi-xin LI Zhi-hua |
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| Abstract: | The allelopathic effects of 10%(w/v)water extracts from stem,leaf and root of red clover(Trifolium pretense L.),white clover(Trifolium repens L.),alsike clover(Trifolium hybridum L.),yellow sweetclover(Melilotus officinalis Desr.),alfalfa(Medicago sativa L.),sainfoin(Onabrychis viciaefolia Scop.)and hairy vetch(Vicia rillosa Roth.)on germination and seedling growth of Italian ryegrass(Lolium multiflorum Lam.)were investigated by a sand-culture experiment.The results showed that the water extracts of these legumes significantly delayed the germination and retarded growth of seedling root of Italian ryegrass;10% water extracts had no significant effects on leaf extending,but significantly retarded dry matter accumulation of seedling leaf.The allelopathy of these forage legumes differed significantly on both allelopathic intensity and mechanism among species. |
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| Keywords: | Forage legumes Allelopathic effect Water extract Germination Seedling growth |
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