摘要
温带落叶果树在冬季以休眠抵御寒冷的气候条件。近年来的研究结果表明 ,休眠不仅可以使果树渡过寒冬 ,而且也是落叶果树下一年正常开花结果所必需的一个过程。果树芽休眠进程的界定、休眠深度的确定以及温度对休眠的影响的研究是果树芽休眠研究的理论基础。果树芽休眠主要分为 3个阶段 ,即预休眠、内休眠及环境休眠等。温度是影响芽休眠的一个重要的指标。低温可以促进打破芽休眠。对果树芽休眠结束时间的计算有 3种方法 :7.2℃低温模型、犹他模型和动力学模型。对于高温对休眠状态的影响存在两种观点 ,有人认为高温可抵消低温效应 。
Dormancy of temperate zone deciduous fruit trees allow the trees to reserve cold climate conditions during the winter. Recent years' study indicates that dormancy can not only let fruit trees survive cold winter, but be a necessary procedure for deciduous fruit trees to bloom and fruit normally next year. The definition of dormancy process, the determination of dormancy depth and the effect of temperature on dormancy are the theoretical foundation of fruit trees bud dormancy study. The dormancy of deciduous fruit trees could be divided into three parts, para dormancy, endo dormancy and eco dormancy. Low temperature could improve to break dormancy There are three methods to determinate the end time of fruit trees bud dormancy: 7.2℃ low temperature model, Utah model and dynamic model. But there are two different reviews about the effect of high temperature: some believe that high temperature could counteract the effect of low temperature, others believe that high temperature could improve to break dormancy.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2002年第z1期101-103,共3页
Journal of Hebei Agricultural University
基金
河北省科技厅博士基金资助项目的部分内容
关键词
果树
休眠
温度
fruit trees
dormancy
temperature
