摘要
对内蒙古赤峰市高格斯台罕乌拉自然保护区2个自然居群和内蒙古农校芍药园内2个栽培品种的芍药进行了连续2年的观察和研究表明，不同居群、不同品种的芍药花期相同，均为23～27d。芍药不存在无融合生殖，有微弱的自交性，不存在闭花授粉的现象。是以昆虫为媒介以异交为主要传粉方式的物种。不同花期的结实率之间没有显著差异（F=1．501）。芍药的结实率较低，野生居群平均只有23．27％的胚珠发育成种子。两个野生居群的传粉强度和传粉效率小于栽培品种单瓣花，结实率也低于栽培品种单瓣花。三个实验样地不同居群间的人工授粉结实率基本一致，且均高于其他组合。
We observed two natural population and two cultival population of penoy in Gaogeshitaihanwula Nature Sancuary of Chifeng and Agricultural School of Inner Mongolia respectively for about two years. The results showed that the flowering stage of penoy is about 23 to 27d of different population and cultivar. Peony is a kind of cross-pollinating and entomophilous plant with weak capability of selling. No apomixes and cleistogamy was found and no significant difference was found for seed bearin;〈 rate in different flowering stage（F=1.501）. Seeds bearing rate is low. 23.27% ovule developed into seed on average for the wild population. The pollination intensity and efficiency of tow wild populations are lower than that of the cultivar with single, so does for the seeds bearing rate. The seeds bearing rate by artificial cross-pollination was also measured. The rate was nearly the same as all sample plots but higher than the other combinations.
出处
《广西植物》
CAS
CSCD
北大核心
2006年第2期120-124,共5页
Guihaia
基金
国家自然科学基金资助项目(3006011)
内蒙古自治区高等学校研究项目(NJ04034)~~
关键词
芍药
生物学特性
繁育系统
传粉昆虫
传粉生物学
Paeonia lactiflora Pall.
biological characteristics
breeding system
pollinating insect
pollination biology
