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| 扁蓿豆叶片解剖结构特征与生态因子相关性分析 | |
| 引用本文： | 李鸿雁,李志勇,赵成贵,蔡丽艳,张静萍,周国栋.扁蓿豆叶片解剖结构特征与生态因子相关性分析[J].草地学报,2012,20(2):236-243. |
| 作者姓名： | 李鸿雁 李志勇 赵成贵 蔡丽艳 张静萍 周国栋 |
| 作者单位： | 1. 中国农业科学院草原研究所农业部沙尔沁牧草资源重点野外科学观测试验站,内蒙古呼和浩特,010010 2. 内蒙古乌兰察布市凉城县畜牧局,内蒙古凉城,013700 3. 内蒙古大学,内蒙古呼和浩特,010021 |
| 基金项目： | 农业部农作物种质资源保护与利用项目(NB2011-2130135-33),农业部牧草种质资源保护项目(2011-10);中央级公益性科研院所基本科研业务费专项“牧草种质资源收集、评价及创新研究”资助 |
| 摘 要： | 为了探讨扁蓿豆(Medicago ruthenica)叶片组织结构与生境的关系,以来自我国7个省市(自治区)的扁蓿豆种质资源共59个居群的成熟叶片为试验材料,采用石蜡制片法,用光学显微技术测定叶片上表皮厚度、叶片下表皮厚度、叶片厚度、维管束直径、栅栏组织厚度、海绵组织厚度、栅海比、叶片栅栏组织结构紧密度和叶片海绵组织结... |
| 关 键 词： | 扁蓿豆 叶片解剖特征 环境因子 相关分析 |
Correlation Analysis between Leaf Anatomic Traits and Environment Factors of Medicago ruthenica |
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| LI Hong-yan , LI Zhi-yong , ZHAO Cheng-gui , CAI Li-yan , ZHANG Jing-ping , ZHOU Guo-dong.Correlation Analysis between Leaf Anatomic Traits and Environment Factors of Medicago ruthenica[J].Acta Agrestia Sinica,2012,20(2):236-243. | |
| Authors: | LI Hong-yan LI Zhi-yong ZHAO Cheng-gui CAI Li-yan ZHANG Jing-ping ZHOU Guo-dong |
| Institution: | 1 (1.Key Laboratory of Grassland Resources and Ecology Ministry of Agriculture,Grassland Research Institute of he Chinese Academy of Agriculture Science,Hohhot,Inner Mongolia 010010,China;2.Animal Husbandry Burean Liangcheng County Inner Mongolia, Liangcheng,Inner Mongolia 013700,China;3.Inner Mongolia University,Hohhot,Inner Mongolia 010021,China) |
| Abstract: | The mature leaves of 59 Medicago ruthenica species from seven provinces of China were studied using paraffin method.The thickness of upper cuticle,low cuticle,leaves,palisade tissue and spongy tissue,diameter of vascular bundle,palisade tissue/spongy tissue ratio,palisade tissue structure tense ratio and sponge tissue structure loose ratio of leaves were measured by optical microscopy.Anova analysis showed that nine characters were significantly different among different regions(7.47%~24.49%).Correlation analysis showed that all indexes had significant correlation.Palisade tissue thickness,sponge tissue thickness,vascular bundle diameter and leaf thickness represented the most variable data.Clustering analysis showed that 59 materials were grouped into six groups and the genetic relationships among populations were related to geographic distribution.Annual precipitation and palisade tissue thickness,sponge tissue thickness and leaf thickness had positive correlation(P<0.05).Palisade tissue thickness,sponge tissue thickness and leaves thickness were a drought-resistance structure of Medicago ruthenica and related with drought-resistance of Medicago ruthenica. |
| Keywords: | Medicago ruthenica Leaf anatomic traits Environment factors Correlation analysis |
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