| 紫萼开花物候及对雌性繁殖成功的影响 |
| |
| 引用本文： | 刘虹君,李燕,操国兴.紫萼开花物候及对雌性繁殖成功的影响[J].西南农业大学学报,2011,33(6). |
| |
| 作者姓名： | 刘虹君 李燕 操国兴 |
| |
| 作者单位： | 四川农业大学林学院; |
| |
| 基金项目： | 国家自然科学基金资助项目(30870388) |
| |
| 摘 要： | 连续两年研究了紫萼同一种群的开花物候,结果表明:紫萼个体水平的开花进程在两年间基本相似,属于集中开花模式.而其它开花物候特征在年际间表现出显著差异,2008年有明显的开花高峰,始花、开花高峰和终花时间都先于2009年.2009年的花期长于2008年,开花同步性也显著高于2008年.在所观测的两年中,个体的始花日与开花高峰日呈显著的正相关,与总花数和持续时间呈显著负相关;花数与持续时间呈显著正相关,与同步指数呈显著负相关;持续时间与同步指数呈显著负相关.个体种子数与始花时间间表现出显著的负定向选择,个体倾向于提早开花得到更大的适合度.
|
| 关 键 词： | 紫萼 开花物候 雌性适合度 表型自然选择 |
Flowering Phenology in Hosta ventricosa (Liliaeeae)and Its Influence on Successful Female Reproduction |
| |
| LIU Hong-jun,LI Yan,CAO Guo-xing College of Forestry,Sichuan Agricultural University,Yaan Sichuan ,China.Flowering Phenology in Hosta ventricosa (Liliaeeae)and Its Influence on Successful Female Reproduction[J].Journal of Southwest Agricultural University,2011,33(6). |
| |
| Authors: | LIU Hong-jun LI Yan CAO Guo-xing College of Forestry Sichuan Agricultural University Yaan Sichuan China |
| |
| Institution: | LIU Hong-jun,LI Yan,CAO Guo-xing College of Forestry,Sichuan Agricultural University,Yaan Sichuan 625014,China |
| |
| Abstract: | Flowering phenology and female reproductive success in Hosta ventricosa were observed during two consecutive years(2008-2009).Flowering schedule among the plants was similar in the two years,exhibiting a mass flowering pattern.However,a marked peak flowering was observed only in 2008.Flowering start date,peak date and finish date were earlier in 2008 than in 2009.Flowering duration was longer and flowering synchrony was higher in 2009 than in 2008.In both years,flowering start date of individual plant was p... |
| |
| Keywords: | Hosta ventricosa flowering phenology female fitness phenotypic natural selection |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西南农业大学学报》浏览原始摘要信息 |
| 点击此处可从《西南农业大学学报》下载免费的PDF全文 |
|
