二球悬铃木冬芽休眠的温度特性  

Temperature Characteristics of Winter Bud Dormancy of Platanus acerifolia

作　　者：刘震[1] 王国霞[1] 蒋建平[1] 

机构地区：[1]河南农业大学林学园艺学院,河南郑州450002

出　　处：《西南林学院学报》2005年第4期93-97,共5页Journal of Southwest Forestry College

基　　金：河南省科技厅厅长基金资助项目

摘　　要：对悬铃木冬芽进行温度特性研究发现:其具有浅冬休眠的特性;冬芽能否萌发取决于芽鳞的阻碍作用力与叶原基、生长点或花原基萌发力的平衡状态;9～10月为休眠导入期,10月下旬进入深休眠期,同时进入休眠解除期,解除其休眠的低温范围较大,15℃与20℃也有低温效果;二球悬铃木得以广泛栽培正是由于其冬芽休眠的生理生态特性决定的.Temperature characteristics of winter bud dormancy of Platantts acerifolia were studied and the following results were obtained：The winter buds of Platanus acerifolia were characterized by shallow dormancy. The sprouting capacity of the winter buds was determined by the force balance between the oppressing force of the bud scale and the sprouting forces from the phyllome, growth point or flower primordia. The dormancy inducing period of the winter buds of Platanus acerifolia was from September to October, and the deep dormancy started at later October, meanwhile the dormancy of winter buds of Platanus acerifolia was released gradually by the lower temperature in the winter. The range of lower temperature to release the winter bud dormancy was quite large, 15℃ and 20℃ could also have the lower temperature effect. It was proposed that the wide cultivation of Platanus acerifolia from subtropical to temperate zones might result in its eco - physiological adaptability of winter buds dormancy.

关 键 词：二球悬铃木 冬芽 休眠特性 

分 类 号：S718.3[农业科学—林学]