摘要
山桃花呈粉色和白色,具雄蕊29-32枚,柱头具疣状突起,有外分泌腺,由多层细胞构成。群落花期约46 d,单花花期约8 d,分为露粉期、微开期、盛花期、末花期4个阶段。花药以纵裂的方式开裂,一个花药开裂1 h左右。山桃花一般在微开期开始泌蜜,2-3 d泌蜜量达到高峰,4-5 d产蜜量减少直至停止,日泌量和散粉量集中在每日11：00-14：00时,山桃开花受环境的影响。
Prunus davidiana has two colours, including pink and white. The number of stamens is 29-32. Stigama is like tower of wart shape. It has exdocrine gland which is made of many layers cells. The florescenece in large scale was about 46 d,and the single florescenece can last 8 d, the blooming period was divided into four parts-pink appearing, partly blooming, full blooming and withering. Anthers dehisce in verticaland a anther＇ dehiscence needs 1 h approximately. The flower starts to secrete nectar usually in partly blooming. Secreting nectar quality reached the peak 2-3 d,and 4-5 d begins to reduce until stopping secreting nectar. Secreting nectar and spreading pollen took place between 11：00～14： 00 everyday. In addition, the characters of flower blossom was observed to be closely connected with the environment.
出处
《北方园艺》
CAS
北大核心
2008年第11期106-108,共3页
Northern Horticulture
基金
内蒙古自然科学基金资助项目(200711020513)
关键词
山桃花
生物学特性
花期
Pruns davidiana
Flower biology
Flower period
