| 菊叶委陵菜种子萌发对温度、水分和氮肥的响应 |
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| 引用本文： | 孙墨溪,金洪,孙雯,郭涛.菊叶委陵菜种子萌发对温度、水分和氮肥的响应[J].中国草地学报,2012,34(2):116-120. |
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| 作者姓名： | 孙墨溪 金洪 孙雯 郭涛 |
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| 作者单位： | 1. 内蒙古农业大学理学院,内蒙古呼和浩特,010019
2. 内蒙古农业大学生态环境学院,内蒙古呼和浩特,010019 |
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| 基金项目： | 内蒙古农业大学博士基金(BJ04-20) |
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| 摘 要： | 采用室内培养试验方法,研究了温度、水分和氮素供应水平对菊叶委陵菜种子萌发的影响.结果表明:菊叶委陵菜种子适宜发芽温度为25℃；适宜发芽含水量为50％,水分含量超过此值后发芽率缓慢下降；适宜发芽氮肥浓度为0.5mmol/L～1.0mmol/L.贮藏1年的种子与当年采集的种子相比,出苗速度、发芽率、活力指数和发芽指数等指标均较高.
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| 关 键 词： | 菊叶委陵菜 种子萌发 温度 水分 氮肥 |
Effect of Temperature, Moisture and Nitrogen Fertilizer on the Germination of Potentilla tanacetifolia Willd. |
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| SUN Mo-xi
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JIN Hong
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SUN Wen
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GUO Tao.Effect of Temperature, Moisture and Nitrogen Fertilizer on the Germination of Potentilla tanacetifolia Willd.[J].Chinese Journal of Grassland,2012,34(2):116-120. |
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| Authors: | SUN Mo-xi JIN Hong SUN Wen GUO Tao |
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| Institution: | 1.College of Sciences,Inner Mongolia Agricultural University,Hohhot 010019,China; 2.College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot 010019,China) |
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| Abstract: | The effects of temperature,moisture and nitrogen fertilizer on the germination of Potentilla tanacetifolia Willd.were studied.The results indicated that the temperature had a great impact on the germination of the seed,the appropriate temperature was 25℃;the moisture content for germination was 50%,if the moisture content was excessive,the germination rate was decreased slowly;with the adding of the nitrogen fertilizer,seed germination rate of Potentilla tanacetifolia Willd.was in a increasing trend,the appropriate concentration of nitrogen fertilizer for germination was 0.5mmol/L～1mmol/L;the emergence rate,germination rate,vigor index and germination index of the seeds stored for one year were higher than that of seeds collected in the year. |
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| Keywords: | Potentilla tanacetifolia Willd Seed germination Temperature Soil moisture Nitrogen fertilizer |
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