Habitat-linked temperature requirements for fruit germination in Quercus species: A comparative study of Quercus subgenus Cyclobalanopsis (Asian evergreen oaks) and Quercus subgenus Quercus
文献类型：期刊论文
| 作者 | Xia,Ke; Daws,Matthew I.; Zhou,Zhe-Kun; Pritchard,Hugh W. |
| 刊名 | SOUTH AFRICAN JOURNAL OF BOTANY
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 100页码:108-113 |
| 关键词 | Acorn Climate Geographic range Germination niche Germination percentage |
| 英文摘要 | The genus Quercus contains two subgenera with distinct geographic and habitat ranges. Generally, subgenus Quercus has the wider habitat range spanning subtropical to temperate regions across the Northern Hemisphere, whereas subgenus Cyclobalanopsis mainly occurs in subtropical and tropical Asia. Particularly for subgenus Cyclobalanopsis, germination patterns and behaviour, and how they relate to climate are unknown. In this study we investigated the germination responses of 6 species from subgenus Cyclobalanopsis and 9 species from subgenus Quercus to different temperatures and tested for associations between germination requirements and habitat range. Species from subgenus Cyclobalanopsis from subtropical and tropical habitats (average over-winter monthly temperature >= 8 degrees C) germinated poorly at 15 degrees C and reached high germination percentages at 25 degrees C. Irrespective of the taxa, species living in a wide habitat range (average overwinter temperature range -8 to 23 degrees C) reached high germination percentages at 15-25 degrees C. Across all the species, time to 50% germination was not related to fruit traits but was significantly associated with phylogeny: subgenus Cyclobalanopsis fruits germinated more slowly than those of subgenus Quercus at all temperatures tested. Across species, sensitivity to lower germination temperatures was correlated with the highest temperature in their habitat after fruit dispersal. This study demonstrates a link between germination requirements and divergent distribution patterns between the two subgenera. (C) 2015 SAAB. Published by Elsevier B.V. All rights reserved. |
| 类目[WOS] | Plant Sciences |
| 研究领域[WOS] | Plant Sciences |
| 关键词[WOS] | SEED TRAITS ; DESICCATION SENSITIVITY ; RECALCITRANT SEEDS ; FOREST ; SQUIRRELS ; PREDATION ; RESPONSES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000361254700017 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/25145]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 推荐引用方式 GB/T 7714 | Xia,Ke,Daws,Matthew I.,Zhou,Zhe-Kun,et al. Habitat-linked temperature requirements for fruit germination in Quercus species: A comparative study of Quercus subgenus Cyclobalanopsis (Asian evergreen oaks) and Quercus subgenus Quercus[J]. SOUTH AFRICAN JOURNAL OF BOTANY,2015,100:108-113. |
| APA | Xia,Ke,Daws,Matthew I.,Zhou,Zhe-Kun,&Pritchard,Hugh W..(2015).Habitat-linked temperature requirements for fruit germination in Quercus species: A comparative study of Quercus subgenus Cyclobalanopsis (Asian evergreen oaks) and Quercus subgenus Quercus.SOUTH AFRICAN JOURNAL OF BOTANY,100,108-113. |
| MLA | Xia,Ke,et al."Habitat-linked temperature requirements for fruit germination in Quercus species: A comparative study of Quercus subgenus Cyclobalanopsis (Asian evergreen oaks) and Quercus subgenus Quercus".SOUTH AFRICAN JOURNAL OF BOTANY 100(2015):108-113. |
入库方式： OAI收割
来源：昆明植物研究所
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