| PEG渗调处理改善结缕草种子活力的研究 |
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| 引用本文： | 韩建国,钱俊芝,刘自学.PEG渗调处理改善结缕草种子活力的研究[J].中国草地学报,2000(3):22-28. |
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| 作者姓名： | 韩建国 钱俊芝 刘自学 |
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| 作者单位： | 1. 中国农业大学草地研究所，北京 100094
2. 北京克劳沃草业技术开发中心，北京 100029 |
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| 基金项目： | 北京克劳沃草业中心资助项目 |
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| 摘 要： | 以不同活力的结缕草种子为材料，研究了PEG不同浓度、不同处理时间和不同浸种温度对种子活力的影响。结果表明，PEG渗透处理自然贮藏2～5年活力降低的结缕草种子效果显著，发芽速度明显提高，种苗质量得到改善。在PEG处理浓度25%、处理时间24h时，25℃下渗调结果比15℃下效果好。经PEG渗透调节之后，结缕草种子萌发进程中的代谢过程有所改变，酸性磷酸酶与过氧化物酶的活性、ATP的含量均比对照有明显的提高。
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| 关 键 词： | PEG 结缕草 种子活力 |
| 文章编号： | 1000-6311(2000)03-0022-07 |
| 修稿时间： | 2000年1月19日 |
A Study on Improving Seed Vigour by PEG Treatment in Zoysiagrass. |
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| HAN Jian-guo,QIAN Jun-zhi,LIU Zi-xue.A Study on Improving Seed Vigour by PEG Treatment in Zoysiagrass.[J].Chinese Journal of Grassland,2000(3):22-28. |
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| Authors: | HAN Jian-guo QIAN Jun-zhi LIU Zi-xue |
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| Abstract: | Zoysiagrass seed with different vigour level were treated with PEG-6000 at different treatment concentration, different treatment time, and different treatment temperature. The result showed that effects of PEG pretreatment were noticeable to promote the seed vigour. Optimal PEG soaking concentration and optimal soaking time were 25% and 24h for Zoysiagrass seed stored over two years, and the effects under 25℃ were better than that under 15℃. After osmoconditioning, Acid phosphates activity, Peroxidase activity and ATP content in the process of germination were all significantly increased. |
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| Keywords: | PEG Zoysiagrass Seed vigour |
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