Physiological dormancy in seeds of two endemic species of Begonia from Yunnan Province, China: diagnosis and classification
文献类型：期刊论文
| 作者 | Hu, Xiao-Jian1,2; Yang, Li-Hua1,2; Guan, Kai-Yun1 |
| 刊名 | PLANT SPECIES BIOLOGY
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 27期号:3页码:201-209 |
| 关键词 | Begonia embryo germination physiological dormancy seed |
| ISSN号 | 0913-557X |
| 通讯作者 | Guan, KY (reprint author), Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Yunnan, Peoples R China.,guanky@mail.kib.ac.cn |
| 英文摘要 | With the purpose of assessing the status of dormancy in seeds of two Begonia species (Begonia lithophila and Begonia guishanensis), freshly matured seeds were given gibberellic acid and moist chilling and allowed to dry after ripening. The seeds were then germinated on media with or without KNO3 at 15, 20, 25, 30 and 18/25 degrees C. All three treatments significantly increased germination percentages. Examination by X-ray revealed that seeds of both species have a fully developed embryo and thus have no morphological component of dormancy; seeds readily imbibed water and KNO3 solution. Therefore, we conclude that seeds of the two Begonia species have non-deep physiological dormancy. Although KNO3 significantly increased germination in both species, alternating temperatures did not, suggesting that the most favorable microhabitat for germination is small-scale disturbances under the forest canopy. |
| 类目[WOS] | Plant Sciences ; Ecology |
| 研究领域[WOS] | Plant Sciences ; Environmental Sciences & Ecology |
| 关键词[WOS] | GERMINATION ; NITRATE ; TEMPERATURE ; RELEASE ; LIGHT |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [30870243]; Chinese Academy of Sciences [KSCX2-YW-Z-032] |
| 语种 | 英语 |
| WOS记录号 | WOS:000308090400003 |
| 公开日期 | 2012-11-30 |
| 源URL | [http://ir.kib.ac.cn:8080/handle/151853/15672]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Yunnan, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Xiao-Jian,Yang, Li-Hua,Guan, Kai-Yun. Physiological dormancy in seeds of two endemic species of Begonia from Yunnan Province, China: diagnosis and classification[J]. PLANT SPECIES BIOLOGY,2012,27(3):201-209. |
| APA | Hu, Xiao-Jian,Yang, Li-Hua,&Guan, Kai-Yun.(2012).Physiological dormancy in seeds of two endemic species of Begonia from Yunnan Province, China: diagnosis and classification.PLANT SPECIES BIOLOGY,27(3),201-209. |
| MLA | Hu, Xiao-Jian,et al."Physiological dormancy in seeds of two endemic species of Begonia from Yunnan Province, China: diagnosis and classification".PLANT SPECIES BIOLOGY 27.3(2012):201-209. |
入库方式： OAI收割
来源：昆明植物研究所
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