| Pb2+污染对多花黑麦草种子萌发及幼苗生长的影响 |
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| 引用本文： | 刘明美,李建农,沈益新.Pb2+污染对多花黑麦草种子萌发及幼苗生长的影响[J].草业科学,2007,24(1):52-54. |
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| 作者姓名： | 刘明美 李建农 沈益新 |
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| 作者单位： | 1. 南京农业大学动物科技学院,江苏,南京,210095
2. 江苏省农林厅畜牧局,江苏,南京,210036 |
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| 基金项目： | 南方农区奶业现代化生产集成与产业化示范 |
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| 摘 要： | 为了解Pb2 污染对牧草生长的危害,实验室光照培养箱培养测定了Pb2 处理对多花黑麦草Loliumm ultiflorum种子萌发和幼苗生长的影响.试验结果表明,Pb2 处理浓度≤800 mg/L时,多花黑麦草种子的萌发和幼苗生长受到促进,出现增效效应;＞800 mg/L后,种子萌发及幼苗生长受到显著抑制.高浓度Pb2 处理对根生长的抑制大于对芽生长的抑制.
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| 关 键 词： | 多花黑麦草 萌芽 Pb2 污染 幼苗生长 |
| 文章编号： | 1001-0629（2007）01-0052-03 |
| 收稿时间： | 12 12 2005 12:00AM |
| 修稿时间： | 2005-12-12 |
Effects of Pb2+ pollution on the seed germination and seedling growth of Italian ryegrass |
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| LIU Ming-mei,LI Jian-nong,SHEN Yi-xin.Effects of Pb2+ pollution on the seed germination and seedling growth of Italian ryegrass[J].Pratacultural Science,2007,24(1):52-54. |
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| Authors: | LIU Ming-mei LI Jian-nong SHEN Yi-xin |
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| Institution: | 1. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; 2. Department of Agriculture and Forestry of jiangsu Province, Nanjing 210009, China |
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| Abstract: | In order to investigate the growth injury of grass by Pb~(2 ) pollution,seed germination and seedling growth of Italian ryegrass(Lolium multiflorum) treated by different Pb~(2 ) concentration were determined in incubator culture.The results showed that seed germination and seedling growth were promoted obviously when Pb~(2 ) concentration below 800 mg/L,and inhibited significantly when Pb~(2 ) concentration above 800 mg/L.Growth inhibition by high Pb~(2 ) concentration treatments to root was greater than that to bud. |
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| Keywords: | Italian ryegrass germination Pb~(2 ) pollution seedling growth |
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