中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 无梗五加的开花特点 东北林业大学学报 2007,35 (7) 18-19
Position: Home > Articles > Flowering Characteristics of Acanthopanax sessiliflorus Journal of Northeast Forestry University 2007,35 (7) 18-19

无梗五加的开花特点

作  者：
李俊涛;张丽;滕文华;李国江;刘林德
单  位：
烟台师范学院;东北林业大学
关键词：
无梗五加;繁育系统;杂交指数;花粉-胚珠比;花粉活力;柱头可授性
摘  要：
对野生无梗五加(Acanthopanax sessiliflorus)的开花特征进行了观察研究,结果表明:无梗五加单朵花的花期为9~10d,花粉寿命为3~4d,花柱在花开后逐渐伸长,柱头二裂、干燥型;同一花序内的花朵在3~4d内逐渐开放,晚开的花朵散粉时早开的花朵花柱仍未伸长,因此,花药与柱头之间存在空间间隔和时间间隔,同一花序内的各花朵之间难于相互传粉;按照杂交指数,其繁育系统属于异交、部分自交亲和、需要传粉者。依据P/O数据,其繁育系统属于专性异交;无梗五加没有自发的自花传粉现象,自然条件下也没有无融合生殖现象,没有传粉者活动就不能座果。
译  名：
Flowering Characteristics of Acanthopanax sessiliflorus
作  者：
Li Juntao(College of Forestry,Northeast Forestry University,Harbin 150040,P.R.China);Zhang Li(Yantai Normal University);Teng Wenhua,Li Guojiang(Northeast Forestry University);Liu Linde(Yantai Normal University)
关键词：
Acanthopanax sessiliflorus;Breeding system;Outcrossing indexes;Pollen-ovule ratios;Pollen viabilities;Pistil recipient phase
摘  要：
An experiment was conducted to observe the flowering characteristics of Acanthopanax sessiliflorus.Results show that the duration of a single flower of A.sessiliflorus with a pollen viability of about three to four days can last nine to ten days,and the pistil recipient phase starts from elongated style and bilobed stigma.In one inflorescence,all flowers blossom gradually within three or four days,and when the later flowers are in male phase(anther dehiscence),the earlier flowers are still undeveloped into female phase(pistil recipient phase).Therefore,there are both temporal and spatial isolations between ♂ and ♀ organs within each flower of A.sessiliflorus.The breeding system of A.sessiliflorus,demanding for pollinators,is outcrossing and partially self-compatible according to the outcrossing index and is obligate xenogamy in terms of pollen-ovule ratio.There is no spontaneous self-pollination and agamospermy in A.sessiliflorus,so the fruit setting must depend on timely visiting of pollinators.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46