| 科尔沁沙地冰草居群形态多样性研究 |
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| 引用本文： | 李景欣,云锦凤.科尔沁沙地冰草居群形态多样性研究[J].内蒙古民族大学学报(自然科学版),2005,20(1):67-70. |
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| 作者姓名： | 李景欣 云锦凤 |
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| 作者单位： | 1. 内蒙古民族大学,农学院,内蒙古,通辽,028042
2. 内蒙古农业大学,内蒙古,呼和浩特,010019 |
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| 基金项目： | “863计划”资助项目(2002AA241101) |
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| 摘 要： | 应用常规统计学方法，对科尔沁沙地冰草5个居群共计100个单株的5个形态学形状(穗长、穗宽、穗轴第一节间长、小穗小花数)进行了分析，各居群均在穗轴第一间节长这一性状表现出最大变异(CV=32．00％)，在穗长上表现出最小变异(CV=18．07％)．采用Shanno-Weaver信息指数，科尔沁沙地冰草居群多样性指数为1．5545，显示了较高的遗传多样性。
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| 关 键 词： | 科尔沁沙地 冰草 居群 遗传多样性 |
| 文章编号： | 1671-0185(2005)01-0067-04 |
| 修稿时间： | 2004年9月12日 |
Studies on the Morphological Diversity of Agropyron Cristatum Populations in Kerqin Sandland |
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| LI Jing-xin,YUN Jin-feng.Studies on the Morphological Diversity of Agropyron Cristatum Populations in Kerqin Sandland[J].Journal of Inner Mongolia University for the Nationalities(Natural Sciences),2005,20(1):67-70. |
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| Authors: | LI Jing-xin YUN Jin-feng |
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| Institution: | LI Jing-xin~1,YUN Jin-feng~2 |
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| Abstract: | Five morphological traits of agropyron cristatum sourced from 5 populations in Kerqin Sandland had been studied by using statistical methods.The results indicated that the high genetic variation of agropyron cristatum populations could be found in Kerqin Sandland.Among the traits,the variation of Rachis internode length was maximum(CV=32.00%),the minimal variation was appeared in spihe length(CV=18.07%).the diversity index was 1.5645,The high genetic variation was indicated. |
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| Keywords: | Kerqin Sandland Agropyron cristatum Populations Genetic diversity |
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