Seed dormancy and germination of a critically endangered plant, Elaeagnus mollis, on the Loess Plateau of China
文献类型：期刊论文
| 作者 | Gao, Ruiru; Hou, Jing; Zhao, Ruihua; Yang, Xuejun2; Hou, Xinyu; Huo, Liping; Hidayati, Siti N.; Walck, Jeffrey L. |
| 刊名 | EUROPEAN JOURNAL OF FOREST RESEARCH
 |
| 出版日期 | 2021 |
| 卷号 | 140期号:2页码:451-461 |
| ISSN号 | 1612-4669 |
| 关键词 | Elaeagnus mollis Seed dormancy Germination Cold stratification Climate change |
| DOI | 10.1007/s10342-020-01342-z |
| 文献子类 | Article |
| 英文摘要 | Elaeagnus mollis is an endangered species narrowly distributed on the south-eastern Loess Plateau of China. Natural regeneration of populations is highly restricted by low seed germination. The aim of this study was to explore why germination is low and how to enhance germination of the species. Field and laboratory experiments were carried out to examine the effects of temperature, light, drought and NaCl on seed germination and the effects of the seed coat, GA(3), cold and warm stratification and after-ripening on dormancy release. Our results showed that (1) fruits (0.65 g/fruit) and seeds (0.14 g/seed) were relatively large, the embryo was surrounded by a hard and permeable seed coat and a lignified calyx tube, and more than half of the fresh seeds were not viable; (2) fresh, intact seeds did not germinate, but germination of scarified seeds was highest at 5/15 degrees C in continuous darkness; (3) dormancy was not released by GA(3) and cold stratification (5 degrees C), but significantly released by variable temperature stratification and field burial, indicating that seeds had deep physiological dormancy; and (4) germination was significantly enhanced by median drought (-0.6 MPa) and NaCl (0.34 M), and decay was inhibited beyond -0.4 MPa osmotic potential and 0.225 M NaCl. Our results suggested that, with habitat loss and climate warming, regeneration from seeds in natural populations will continue to be negatively affected, and the range of the populations will further contract. |
| 学科主题 | Forestry |
| 电子版国际标准刊号 | 1612-4677 |
| 出版地 | NEW YORK |
| WOS关键词 | CLIMATE-CHANGE ; EXTINCTION RISK ; DROUGHT STRESS ; TEMPERATURE ; POPULATIONS ; VIABILITY ; GROWTH ; PERSISTENCE ; ORCHID ; BANKS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000604488800004 |
| 资助机构 | National Natural Science Foundation of China [31770514, 31470476] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26452]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Hidayati, Siti N.; Walck, Jeffrey L.] Middle Tennessee State Univ, Dept Biol, Murfreesboro, TN 37132 USA 2.Shanxi Normal Univ, Sch Life Sci, Linfen 041000, Shanxi, Peoples R China 3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Ruiru,Hou, Jing,Zhao, Ruihua,et al. Seed dormancy and germination of a critically endangered plant, Elaeagnus mollis, on the Loess Plateau of China[J]. EUROPEAN JOURNAL OF FOREST RESEARCH,2021,140(2):451-461. |
| APA | Gao, Ruiru.,Hou, Jing.,Zhao, Ruihua.,Yang, Xuejun.,Hou, Xinyu.,...&Walck, Jeffrey L..(2021).Seed dormancy and germination of a critically endangered plant, Elaeagnus mollis, on the Loess Plateau of China.EUROPEAN JOURNAL OF FOREST RESEARCH,140(2),451-461. |
| MLA | Gao, Ruiru,et al."Seed dormancy and germination of a critically endangered plant, Elaeagnus mollis, on the Loess Plateau of China".EUROPEAN JOURNAL OF FOREST RESEARCH 140.2(2021):451-461. |
入库方式： OAI收割
来源：植物研究所
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