| 光照及种子大小对青藏高原东缘43种石竹目植物种子萌发特征的影响 |
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| 引用本文： | 吕俊平,张春辉,张蕾,王晨阳,张莹莹,杜国祯.光照及种子大小对青藏高原东缘43种石竹目植物种子萌发特征的影响[J].兰州大学学报(自然科学版),2011,47(5):73-78,89. |
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| 作者姓名： | 吕俊平 张春辉 张蕾 王晨阳 张莹莹 杜国祯 |
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| 作者单位： | 兰州大学干旱与草地生态教育部重点实验室,兰州,730000 |
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| 基金项目： | 国家自然科学基金重点项目(40930533) |
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| 摘 要： | 以青藏高原东缘43种石竹目植物种子为对象,在自然光照和遮阴两种实验处理下研究了光照对种子萌发能力的影响以及不同实验处理下种子萌发能力与种子大小的关系.结果显示:整体上,全光照下的萌发开始时间和萌发持续时间显著高于遮阴下的,光照强度对萌发率和萌发速率指数没有影响;科分类水平上,不同科内萌发参数对光照强度的响应存在一定差异...
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| 关 键 词： | 石竹目 光照 遮阴处理 种子萌发 青藏高原东缘 |
Effect of light intensity and seed size on seed germination characteristics of 43 caryophyllales species from the eastern Qinghai-Tibet Plateau |
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| Lü Jun-ping,ZHANG Chun-hui,ZHANG Lei,WANG Chen-yang,ZHANG Ying-ying,DU Guo-zhen.Effect of light intensity and seed size on seed germination characteristics of 43 caryophyllales species from the eastern Qinghai-Tibet Plateau[J].Journal of Lanzhou University(Natural Science),2011,47(5):73-78,89. |
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| Authors: | Lü Jun-ping ZHANG Chun-hui ZHANG Lei WANG Chen-yang ZHANG Ying-ying DU Guo-zhen |
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| Institution: | LU Jun-ping,ZHANG Chun-hui,ZHANG Lei,WANG Chen-yang,ZHANG Ying-ying,DU Guo-zhen Key Laboratory of Arid and Grassland Ecology with the Ministry of Education,Lanzhou University,Lanzhou 730000,China |
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| Abstract: | Under two treats of 100%natural sunlight(NS) and shade(only 3%NS),the effect of light on the germination ability and the relationship between germination ability and seed size of 43 caryophyllales species on the eastern Qinghai-Tibet plateau was studies.In general,it was found that light had no effect on the germination percentage and germination index but,as to first germination and germination period in 100%NS was significantly higher than these in shade.On family classification levels,there were some dif... |
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| Keywords: | caryophyllales light shade seed germination eastern Qinghai-Tibet plateau |
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