Effects of sand burial depth and seed mass on seedling emergence and growth of Nitraria sphaerocarpa
文献类型：SCI/SSCI论文
| 作者 | Li Q. Y. ; Zhao W. Z. ; Fang H. Y. |
| 发表日期 | 2006 |
| 关键词 | biomass allocation optimal burial depth sand burial seed size seedling emergence seedling size size establishment germination temperature dispersal fitness traits weight soil consequences |
| 英文摘要 | A greenhouse experiment was conducted to test the effects of sand burial depth and seed mass on seedling emergence and growth of Nitraria sphaerocarpa. Seeds of Nitraria sphaerocarpa were sorted into three size-classes (large, medium, small) and artificially buried at 0, 1, 2, 3, 4, 5 and 6 cm depths in plastic pots filled with unsterilized sand. In the seven treatments, the percent emergence, seedling mass and seedling height, significantly affected by both burial depth and seed size, were highest at the optimal burial depth of 2 cm burial depth, and decreased with increasing burial depth in each seed size-class. Although seedling mass was usually greatest for large seeds and least for small seeds at each burial depth, little difference was observed in seedling height at shallow burial depths of 0-3 cm. In each seed size-class, with increasing burial depth, both root-mass ratio and aboveground stem-mass ratio decreased, while belowground stem-mass ratio increased. In each burial depth, with decreasing seed size, belowground stem-mass ratio increased, while root-mass ratio decreased. |
| 出处 | Plant Ecology |
| 卷 | 185 |
| 期 | 2 |
| 页 | 191-198 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1385-0237 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23624]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Li Q. Y.,Zhao W. Z.,Fang H. Y.. Effects of sand burial depth and seed mass on seedling emergence and growth of Nitraria sphaerocarpa. 2006. |
入库方式： OAI收割
来源：地理科学与资源研究所
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