蒙古扁桃的花部综合特征与虫媒传粉

连续2年对蒙古扁桃自然居群的传粉昆虫进行了观察。重力玻片法检测结果表明,风媒导致的异株传粉作用可以忽略。蒙古扁桃花散布的气味、花蜜在诱导昆虫传粉中起主要作用。共发现访花昆虫17种,主要包括蜂类、蝇类、蝶类,以蜂类为主。昆虫访花频率与开花习性有关,访问者偏爱访问处于盛花期的花。蒙古扁桃趋向于虫媒的异花授粉,但缺乏忠实的传粉者。

Flora Syndrome and Insect Pollination of Prunus Mongolica Maxim

In studying the pollination insect of an endangered plant Prunus mongolica ,deer dith was chosen for the field work throughout the florescence. The role of wind-pollination in this species could be ignored as the pollen quantity decreased rapidly with the increasing distance.The nectar and smell affected insect pollination.During 2004 to 2005 ,a total number of seventeen species of insects including bees,flies and butterflies were recognized as the flower visitors.The visiting frequency was also observed to be closely associated with the characters of flower blossom.Visitors preferred to visit those flowers in blooming anthesis.This species is tend to be cross-pollinated by insect but without its faithful pollinators.