| 聚乙二醇模拟水分胁迫对桑树种子萌发和生理的影响 |
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| 引用本文： | CHENG Jia-ling,程嘉翎,段建丽,王娜,肖龙云.聚乙二醇模拟水分胁迫对桑树种子萌发和生理的影响[J].安徽农业科学,2006,34(24):6420-6422. |
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| 作者姓名： | CHENG Jia-ling 程嘉翎 段建丽 王娜 肖龙云 |
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| 作者单位： | 中国农业科学院蚕业研究所,江苏镇江,212018;江苏科技大学生物技术学院,江苏镇江,212003 |
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| 摘 要： | 以丰驰桑种子为材料,研究了不同浓度(0、1.0、2.5、5.0、7.5、10.0 g/L)的聚乙二醇-6 000(PEG-6 000)模拟干旱处理对桑树种子发芽和生理的影响。结果表明:用1%PEG处理后,种子的平均发芽速度、发芽率和发芽势较对照高;其他处理随胁迫强度的增加呈现明显下降趋势(均低于对照)。10%PEG处理的种子在试验开始第5天后仍未萌发。随胁迫加重脯氨酸含量先降低后升高;而可溶性蛋白和可溶性糖含量随胁迫加重呈上升趋势。
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| 关 键 词： | 水分胁迫 桑树种子 发芽率 聚乙二醇(PEG) 脯氨酸 |
| 文章编号： | 0517-6611（2006）24-6420-03 |
| 收稿时间： | 09 13 2006 12:00AM |
| 修稿时间： | 2006-09-13 |
Effects of Polyethylene Glycol(PEG)-simulated Drought Stress on Mulberry Seed Germination and Physiology |
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| CHENG Jia-ling ,et al.Effects of Polyethylene Glycol(PEG)-simulated Drought Stress on Mulberry Seed Germination and Physiology[J].Journal of Anhui Agricultural Sciences,2006,34(24):6420-6422. |
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| Authors: | CHENG Jia-ling |
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| Institution: | Sericuhural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212018 |
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| Abstract: | Fengci mulberry seeds being used as material,the effects of the different contents of polyethylene glycol(PEG)(0,1,2.5,5,7.5 and 10 g/L-simulated drought stress on mulberry seed germination and physiology were studied.The results showed that the germination velocity,ratio and potential of the seeds that were treated with 1 % PEG were higher than the CK,but those of other treatments were obviously decreased as the increase of the content of PEG.The seeds treated with 10 %PEG did not germinate after 5 days.The proline content was decreased when they were treated with low content of PEG and increased when they were treated with high content of PEG,but the content of dissoluble protein and sugar was increased along with the increase of the content of PEG. |
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| Keywords: | Simulated drought stress Mulberry seed Germination ratio Polyethylene glycol Proline |
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