Research on Leaf Morphology and Cold Resistance of Alfalfa

doi:10.11733/j.issn.1007-0435.2007.01.013

›› 2007, Vol. 15 ›› Issue (1): 70-75.DOI: 10.11733/j.issn.1007-0435.2007.01.013

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Research on Leaf Morphology and Cold Resistance of Alfalfa

CUI Guo-wen, MA Chun-ping

Institute of Animal Science and Technology, Northeast Agriculture University, Harbin, Heilongjiang Province 150030, China

Received:2006-10-28 Revised:2006-12-20 Online:2007-02-15 Published:2007-02-15

紫花苜蓿叶片形态结构及其与抗寒性的关系

崔国文, 马春平

东北农业大学动物科技学院, 黑龙江, 哈尔滨, 150030

作者简介:崔国文(1964- ),男,内蒙古宁城县人,教授,主要从事牧草生产、牧草育种和野生牧草驯化研究,E-mail:cgw603@163.com
基金资助:
“十五”国家重大科技专项(GZ02B022)

Abstract

Abstract: Tissue parameters of leaves of 7 alfalfa cultivars were observed and analyzed.The results show that there were significant differences of leaf length,ratio of leaf width to length,leaf thickness,stoma density,thickness of palisade and spongy tissues,CTR,SR,and the vein protuberant degree among the cultivars,but no significant difference among the cultivars in leaf width,epidermis and horny layer thickness,stoma length and width.Cultivars with low ratio of leaf width to length,high stoma density,thick stockade tissue,high CTR,low SR and high leaf vein protuberant degree boast strong cold resistance.

Key words: alfalfa, Leaf tissue and structure, Cold resistance

摘要： 对7个紫花苜蓿(Medicago sativa)品种的叶片组织结构进行解剖观察、比较、描述,并测定了叶片结构参数。结果表明,各品种间叶片长、叶片宽长比、叶片厚度、气孔密度、栅栏组织厚度、海绵组织厚度、叶片组织结构紧密度、疏松度和叶脉突起度等指标差异较大;叶宽、表皮厚度、角质层厚度、气孔长度、气孔宽度各品种间无明显差异;其中叶宽长比小、气孔密度大,叶片组织紧密度大、疏松度小,叶脉突起度大者抗寒性较强。

关键词: 紫花苜蓿, 叶片组织结构, 抗寒性

CLC Number:

S812

CUI Guo-wen, MA Chun-ping. Research on Leaf Morphology and Cold Resistance of Alfalfa[J]. , 2007, 15(1): 70-75.

崔国文, 马春平. 紫花苜蓿叶片形态结构及其与抗寒性的关系[J]. , 2007, 15(1): 70-75.

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Research on Leaf Morphology and Cold Resistance of Alfalfa

紫花苜蓿叶片形态结构及其与抗寒性的关系

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