Arid
DOI10.2307/3558448
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
ISSN0002-9122
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.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wolfe, LM]的文章
[Burns, JL]的文章
百度学术
百度学术中相似的文章
[Wolfe, LM]的文章
[Burns, JL]的文章
必应学术
必应学术中相似的文章
[Wolfe, LM]的文章
[Burns, JL]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。