| 光强梯度对羊草无性系分化与生长的影响 |
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| 引用本文： | 杨持,杨理.光强梯度对羊草无性系分化与生长的影响[J].应用生态学报,1997,8(1):83-87. |
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| 作者姓名： | 杨持 杨理 |
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| 作者单位： | 内蒙古大学生态与环境科学系!呼和浩特010021 |
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| 基金项目： | 国家自然科学基金重点资助项目!( 3 93 3 0 0 50 ) |
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| 摘 要： | 在温室内用透光率分别为 60 %、45%、30 %的遮阴网盖在花盆上遮阴 ,研究不同光照强度对羊草无性系分化与生长的影响 .结果表明 ,低光强影响羊草基株的生物量积累 ,抑制羊草无性系的分化和生长 .减少羊草地下根茎的数目 ( A=61 4个 ,D=2 31个 )和无性系分株数 ( A=70 4个 ,D=1 52个 ) .羊草根茎长度和节数、无性系分株干重等性状在不同的光强梯度之间存在显著差异 ( P<0 .0 1 ) ,这种差别在春季尤其显著 .
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| 关 键 词： | 羊草 光强梯度 无性系分株 地下根茎 |
Influence of light intensity on differentiation and growth of Leymus chinensis clone. |
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| Yang Chi and Yang Li.Influence of light intensity on differentiation and growth of Leymus chinensis clone.[J].Chinese Journal of Applied Ecology,1997,8(1):83-87. |
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| Authors: | Yang Chi and Yang Li |
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| Abstract: | Under conditions of 60,45 and 30% shading, the characters of growth and differentiation of Leymus chinensis clone are studied in greehouse. The results show that low light intensity reduces the biomass accumulation of plant, restrains the growth and differentiation of clone, and decreases the total number of rhizomes and ramets. There exists a significant difference of the length and node number of rhizome and the dry biomass of clone under different light intensities, which is more obvious in spring. |
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| Keywords: | Leymus chinensis Light intensity Clone Rhizome |
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