Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2307/3558448 |
A rare continual flowering strategy and its influence on offspring quality in a gynodioecious plant | |
Wolfe, LM; Burns, JL | |
通讯作者 | Wolfe, LM |
来源期刊 | AMERICAN JOURNAL OF BOTANY
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ISSN | 0002-9122 |
出版年 | 2001 |
卷号 | 88期号:8页码:1419-1423 |
英文摘要 | The majority of angiosperms have a single annual bout of reproduction; species that flower continually throughout the year are rare. Ochradenus baccatus is a gynodioecious, desert shrub whose principal flowering period is associated with the winter rains, although large individuals also remain in flower during the hot, dry summer. The goal of this study was to examine the reproductive consequences of continual flowering in a large population of O. baccatus in Israel. Over the two years of this study, 60% of individuals flowered continuously. The number of fruit and seeds per fruit were greater in winter. Winter seeds were similar to 12% heavier than summer seeds and had significantly higher germination rates (80 vs. 60%, respectively). Although summer seeds were smaller and less likely to germinate, we propose that the benefit derived from their production lies in their ability to capitalize on the first winter rains. These early rain events provide a head start on establishment and growth in the hostile desert environment. Plants that delay reproduction until the onset of rains risk having their offspring face the dry conditions of spring and summer. |
英文关键词 | flowering phenology germination gynodioecious hermaphrodite Israel Ochradenus baccatus seed size |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000170368900008 |
WOS关键词 | HYDROPHYLLUM-APPENDICULATUM HYDROPHYLLACEAE ; SHRUB OCHRADENUS-BACCATUS ; SEED SIZE ; PHENOLOGICAL PATTERNS ; WILD RADISH ; TIME ; ESTABLISHMENT ; CONSTRAINTS ; EXPRESSION ; INVESTMENT |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/140190 |
作者单位 | (1)Georgia So Univ, Dept Biol, Statesboro, GA 30460 USA;(2)Georgia So Univ, Zach S Henderson Lib, Statesboro, GA 30460 USA |
推荐引用方式 GB/T 7714 | Wolfe, LM,Burns, JL. A rare continual flowering strategy and its influence on offspring quality in a gynodioecious plant[J],2001,88(8):1419-1423. |
APA | Wolfe, LM,&Burns, JL.(2001).A rare continual flowering strategy and its influence on offspring quality in a gynodioecious plant.AMERICAN JOURNAL OF BOTANY,88(8),1419-1423. |
MLA | Wolfe, LM,et al."A rare continual flowering strategy and its influence on offspring quality in a gynodioecious plant".AMERICAN JOURNAL OF BOTANY 88.8(2001):1419-1423. |
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