| 冷蒿挥发物对紫花苜蓿种子萌发及幼苗生长的影响 |
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| 引用本文： | 杜成,张汝民,侯平,温国胜,高岩.冷蒿挥发物对紫花苜蓿种子萌发及幼苗生长的影响[J].中国草地学报,2009,31(4). |
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| 作者姓名： | 杜成 张汝民 侯平 温国胜 高岩 |
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| 作者单位： | 1. 浙江林学院林业与生物技术学院,浙江,临安,311300;内蒙古农业大学农学院,内蒙古,呼和浩特,010019
2. 浙江林学院林业与生物技术学院,浙江,临安,311300 |
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| 基金项目： | 国家自然科学基金，内蒙古农业大学博士科研启动基金 |
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| 摘 要： | 以7个紫花苜蓿品种为试验材料,研究了损伤和未损伤冷蒿释放的挥发物对苜蓿种子萌发生理特性的影响.结果表明:损伤和未损伤冷蒿释放的挥发物对7个紫花苜蓿品种的种子发芽指数和发芽率均有抑制作用,损伤处理与未损伤冷蒿挥发物处理相比,种子发芽率降低了5.6%～15.0%;挥发物对7个紫花苜蓿品种幼苗生长具有明显的抑制作用,与对照相比,未损伤冷蒿释放的挥发物使7个紫花苜蓿品种根生长降低了10.4%～22.8%,芽生长降低了12.7%～30.4%,幼苗鲜质量降低了11.2%～16.8%;损伤冷蒿挥发物抑制作用较未损伤冷蒿挥发物有所增强.
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| 关 键 词： | 冷蒿 紫花苜蓿 挥发物 化感作用 |
Effects of VOCs from Artemisia frigida Willd. on Seeds Germination and Seedlings Growth of Medicago sativa |
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| DU Cheng,ZHANG Ru-min,HOU Ping,WEN Guo-sheng,GAO Yan.Effects of VOCs from Artemisia frigida Willd. on Seeds Germination and Seedlings Growth of Medicago sativa[J].Chinese Journal of Grassland,2009,31(4). |
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| Authors: | DU Cheng ZHANG Ru-min HOU Ping WEN Guo-sheng GAO Yan |
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| Abstract: | In order to make clear the allelopathy of volatile organic compounds (VOCs) from Artemisia frigida, the effects of VOCs from undamaged and damaged A. frigida on seeds germination percentage and seedlings growth of 7 varieties of Medicago sativa were studied. The results showed that the seeds germination percentage and germination index of M. sativa were significantly inhibited by VOCs from un- damaged and damaged A. frigida. The germination percentage, treated with VOCs from damaged A. frigida, was decreased by 5.6%～15.0% compared with the treatment of the undamaged A. frigida. Compared with CK, roots length, buds length and fresh seedlings mass in the treatment of VOCs from un- damaged A. frigida were decreased by 10.4%～22.8%, 12.7%～30.4% and 11.2%～16.8%, respec- tively. Inhibitions of VOCs from damaged A. frigida were stronger than the undamaged A. frigida. |
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| Keywords: | Artemisia frigida Willd Medicago sativa VOCs Allelopathy |
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