| 北京地区新收获柳枝稷种子的萌发和出苗特性 |
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| 引用本文： | 范希峰,侯新村,武菊英,左海涛,朱毅.北京地区新收获柳枝稷种子的萌发和出苗特性[J].草业科学,2011,28(9):1636-1639. |
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| 作者姓名： | 范希峰 侯新村 武菊英 左海涛 朱毅 |
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| 作者单位： | 1. 北京市农林科学院,北京草业与环境研究发展中心,北京100097
2. 北京市农林科学院,北京草业与环境研究发展中心,北京100097／中国农业大学农学与生物技术学院,北京100193 |
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| 基金项目： | 国家948计划项目“国外特异草资源引进与应用”(2011-Z62); 生物质能源学科建设(KJCX201102005) |
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| 摘 要： | 为探明能源型植物柳枝稷（Panicum virgatum）新收获种子的萌发和出苗对环境条件的要求，研究了温度、光照和播种深度对柳枝稷种子萌发和出苗的影响。结果表明，柳枝稷种子萌发的适宜温度为30～35 ℃，此时发芽率、发芽势和发芽指数均明显高于其他温度处理；其发芽率不受光照影响，但光暗交替条件下的发芽速率、发芽势和发芽指数较黑暗条件下显著提高；其适宜的播种深度为2～16 mm，不覆土或播种过深均不利于出苗。
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| 关 键 词： | 柳枝稷 种子萌发 温度 光照 播种深度 |
Germination characteristics of newly-harvested seeds of switchgrass in Beijing,China |
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| FAN Xi-feng,HOU Xin-cun,WU Ju-ying,ZUO Hai-tao,ZHU Yi.Germination characteristics of newly-harvested seeds of switchgrass in Beijing,China[J].Pratacultural Science,2011,28(9):1636-1639. |
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| Authors: | FAN Xi-feng HOU Xin-cun WU Ju-ying ZUO Hai-tao ZHU Yi |
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| Institution: | FAN Xi-feng1,HOU Xin-cun1,WU Ju-ying1,ZUO Hai-tao1,ZHU Yi1,2(1.Beijing Research and Development Center for Grass and Environment,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China,2.College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China) |
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| Abstract: | The objective of this study was to determine the effects of temperature,light and sowing depth on newly seed germination of switchgrass(Panicum virgatum cv.Alamo) planting in the Beijing for 3 years,which was introduced from the United States in 2005.The resulted of this study showed that the temperatures from 30 ℃ to 35 ℃ encouraged the seeds to germinate faster,and increased the maximum germination percentage,germination vigor,germination index when compared to the low temperature from 20 ℃ to 25 ℃ and the high temperature with 40 ℃.The light and darkness treatments did not affect the germination percentage of Alamo seeds,but encouraged the seeds to germinate faster and increased the germination vigor and germination index.The treatments of differently sowing depths,from 2 mm to 16 mm,were very uniform and efficient since they not only encouraged the seeds to emerge but also increased the emergence percentage and emergence index of switchgrass seeds in comparison with 0 and 32 mm sowing depths. |
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| Keywords: | Panicum virgatum cv Alamo seed germination temperature light sowing depth |
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