华北农学报 ›› 2010, Vol. 25 ›› Issue (2): 182-187. doi: 10.7668/hbnxb.2010.02.037

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苜蓿秋眠标准对照品种的幼苗形态与秋眠性、越冬率的关系

于林清1, 云锦凤2, 郭九峰3, 孙国琴3, 张利军4, 孙娟娟4   

  1. 1. 内蒙古农业大学 生态环境学院, 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;
    3. 内蒙古农牧业科学院, 内蒙古 呼和浩特 010031;
    4. 中国农业科学院 草原研究所, 内蒙古 呼和浩特 010010
  • 收稿日期:2009-12-10 出版日期:2010-04-28
  • 作者简介:于林清(1965-),男,河北沧州人,副研究员,博士,主要从事牧草种质资源与育种方面的研究.
  • 基金资助:
    国家自然科学基金(30371487);内蒙古自然科学基金重点项目(200711020303);国家科技支撑项目(2008BADB3B06);国家高技术研究发展计划(“863”计划)(2008AA10Z149)

Study on the Relationship between Standards Fall-dormancy of Alfalfa Variety with Fall-dormancy Seedling Morphology and Winter Hardiness

YU Lin-qing1, YUN Jin-feng2, GUO Jiu-feng3, SUN Guo-qin3, ZHANG Li-jun4, SUN Juan-juan4   

  1. 1. College of the Ecological Environment, Inner Mongolia Agricultural University, Huhhot 010019, China;
    2. Grassland Research Institute of Chinese Academy of Agriculture Sciences, Huhhot 010010, China;
    3. Agricultural and Husbandrgy Sciences Research Academy of Inner Mongolia, Huhhot 010031, China
  • Received:2009-12-10 Published:2010-04-28

摘要: 为了寻找快速测定苜蓿秋眠性的方法,利用来自美国的11个苜蓿秋眠标准对照品种,分析了不同品种的幼苗子叶到第1真叶、第1、2真叶间距离与苜蓿的秋眠性、抗寒性的关系,发现苜蓿的秋眠级与子叶到第1真叶节间距极显著正相关,与第1~2真叶节间距也极显著正相关(P<0.01),与越冬率也极显著正相关;子叶到第1真叶节间距与越冬率极显著负相关(P<0.01),第1~2真叶节间距也与越冬率极显著负相关(P<0.01);以子叶到第1真叶节间距、第1~2真叶节间距可评价苜蓿品种的秋眠性与抗寒性。苜蓿不同秋眠类别组之间的子叶到第1真叶节间距、第1~2真叶节间距存在显著差异,可以用子叶到第1真叶节间距、第1~2真叶节间距大致测定苜蓿的秋眠类别,但是不同秋眠类别组内子叶到第1真叶节间距、第1~2真叶节间距在不同品种间多不存在显著差异,说明以子叶到第1真叶节间距、第1~2真叶节间距不能精确测定苜蓿的秋眠级。

关键词: 苜蓿, 秋眠标准对照品种, 越冬率, 子叶到第1真叶节间距, 第1~2真叶节间距

Abstract: For searching rapid testing alfalfa fall dormancy method,11 fall-dormancy standard checks of alfalfa varieties were measured in the distance of cotyledon to the first leaf,the distance between 1st-2nd leaf,and winter-survival rate in seedlings stage in this paper.The results showed there were extremely significant positive correlation not only between fall-dormancy and the distance of cotyledon to the first leaf,but also extremely significant(P0.01)positive correlation between fall-dormancy and the distance of 1st-2nd leaf;which showed there were relationship between fall dormancy and the distance of cotyledon to the 1st leaf,the distance of 1st-2nd leaf.The correlation of distance of cotyledon to the 1st leaf and the winter-survival rate was extremely significant negative,the distance of 1st-2nd leaf and the winter-survival rate was also extremely significant negative also;which suggest the distance of cotyledon to the 1st leaf and the distance of 1st-2nd leaf could be indexes to estimate alfalfa winter survival rate.Although there were significant differences between different fall dormancy groups,but there were no significant differences in alfalfa cultivars among fall dormancy groups;some varieties with higher fall dormancy,but with lower the 1st leaf to cotyledon distance and the distance of 1st-2nd leaf;which suggested that the 1st leaf to cotyledon distance and the distance of 1st-2nd leaf could be used as index to estimate alfalfa fall-dormancy in which group,but could not be used as index to measue fall dormancy accurately.

Key words: Alfalfa, Fall dormancy standard checks varieties, Winter-surv ival rate, The distance between coty ledon to the 1st leaf, The distance of 1st- 2nd leaf

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引用本文

于林清, 云锦凤, 郭九峰, 孙国琴, 张利军, 孙娟娟. 苜蓿秋眠标准对照品种的幼苗形态与秋眠性、越冬率的关系[J]. 华北农学报, 2010, 25(2): 182-187. doi: 10.7668/hbnxb.2010.02.037.

YU Lin-qing, YUN Jin-feng, GUO Jiu-feng, SUN Guo-qin, ZHANG Li-jun, SUN Juan-juan. Study on the Relationship between Standards Fall-dormancy of Alfalfa Variety with Fall-dormancy Seedling Morphology and Winter Hardiness[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(2): 182-187. doi: 10.7668/hbnxb.2010.02.037.

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