| Pb2+对紫萼玉簪种子萌发和幼苗生长的影响 |
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| 引用本文： | 王景,王娟,高素萍,赵志惠,何海峰.Pb2+对紫萼玉簪种子萌发和幼苗生长的影响[J].西南农业学报,2011,24(5). |
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| 作者姓名： | 王景 王娟 高素萍 赵志惠 何海峰 |
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| 作者单位： | 四川农业大学风景园林院,四川温江,611130 |
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| 摘 要： | 试验以紫萼玉簪为材料,研究了不同浓度铅( 125,250,500,1000,2000 mg·kg-1)胁迫对紫萼种子萌发及幼苗生长的影响.结果表明:Pb2+浓度小于500 mg·kg-1对紫萼玉簪种子的发芽及幼苗生长有一定的促进作用；随着浓度提高,Pb2+胁迫对紫萼玉簪萌发的抑制作用增大,浓度为1000和2000 mg·kg -1抑制作用明显,同时POD活性随Pb2+浓度的升高呈现先升高后降低的趋势,SOD活性随着Pb2+浓度升高呈现先降低后升高的趋势.说明低浓度Pb2+处理可以促进种子萌发和提高生物量；高浓度则抑制.
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| 关 键 词： | 铅 紫萼玉簪 种子萌发 幼苗生长 |
Effects of Lead Stress on Seed Germination and Seedlings Growth of Hosta ventricosa |
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| WANG Jing,WANG Juan,GAO Su-ping,ZHAO Zhi-hui,HE Hai-feng.Effects of Lead Stress on Seed Germination and Seedlings Growth of Hosta ventricosa[J].Southwest China Journal of Agricultural Sciences,2011,24(5). |
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| Authors: | WANG Jing WANG Juan GAO Su-ping ZHAO Zhi-hui HE Hai-feng |
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| Institution: | WANG Jing,WANG Juan,GAO Su-ping,ZHAO Zhi-hui,HE Hai-feng (Sichuan Agricultural University Landscape Architecture College,Sichuan Wenjiang 611130,China) |
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| Abstract: | |
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| Keywords: | Plumbum Hosta ventricosa Germination Seedhng growth |
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