Cold stratification, light and high seed density enhance the germination of Ottelia alismoides
文献类型：期刊论文
| 作者 | Yin, Liyan1; Wang, Caiyun2; Chen, Yuanyuan1; Yu, Cao1; Cheng, Yu1; Li, Wei1 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2009 |
| 卷号 | 90期号:1页码:85-88 |
| 关键词 | Seed germination Dormant Ottelia alismoides Stratification Light dependent Density |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2008.05.002 |
| 英文摘要 | The effects of cold stratification, light and seed clustering in petri dish on Ottelia alismoides seed germination were investigated. The seeds required light and an extended cold period in order to germinate, but neither treatment alone was effective. Seed germination significantly increased with length of the 4 degrees C cold stratification period. Freshly collected seeds failed to germinate while a 5-month period at 4 degrees C yielded 29 +/- 9% germination in the light, but none in the dark. Treatment with sodium nitroprusside, a nitric oxide source. failed to promote germination in the light or dark. Seeds of O. alismoides showed an unusual and significant positive response to aggregation. Germination in the light, after 5-month 4 degrees C cold stratification, was stimulated to almost five-fold in the dishes that were more densely sown with seed (20 seeds versus 200 seeds). Likewise, clustering seeds in dense aggregations stimulated germination significantly. Germination more than quadrupled with an increase from 1 to 50 seeds per cluster (200 seeds per dish), reaching a value of 72 +/- 4%. Linear regression analysis shows the correlation between seed cluster density (no. per cluster) and germination rate (%) was highly significant (R(2) = 0.85, P = 0.000). The extended cold stratification requirement is probably an over-wintering device. The mechanism of the density-dependent stimulation is unclear. (c) 2008 Elsevier B.V. All rights reserved. |
| 资助项目 | National Scientific Foundation of China[30700083] ; National Scientific Foundation of China[29970065] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000261964500014 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1063]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Wei |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Lab Aquat Plant Biol, Wuhan 430074, Hubei, Peoples R China 2.Huazhong Agr Univ, Coll Hort & Forestry, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Liyan,Wang, Caiyun,Chen, Yuanyuan,et al. Cold stratification, light and high seed density enhance the germination of Ottelia alismoides[J]. AQUATIC BOTANY,2009,90(1):85-88. |
| APA | Yin, Liyan,Wang, Caiyun,Chen, Yuanyuan,Yu, Cao,Cheng, Yu,&Li, Wei.(2009).Cold stratification, light and high seed density enhance the germination of Ottelia alismoides.AQUATIC BOTANY,90(1),85-88. |
| MLA | Yin, Liyan,et al."Cold stratification, light and high seed density enhance the germination of Ottelia alismoides".AQUATIC BOTANY 90.1(2009):85-88. |
入库方式： OAI收割
来源：武汉植物园
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