Analysis on Suitable Climatic Condition of High Quality and Yield Winter Jujube [Ziziphus jujuba Mill.var.inemmis(Bunge) Rehd.] in Huanghua City

Based on the meteorological date of Huanghua from 1971 to 2000,combined with the plant physiological characteristics of winter jujube in Huanghua,the climatic conditions of high quality and yield winter jujube were analyzed.During the whole growth period of winter jujube,temperature can stably sufficed the suitable conditions of the winter jujube during every growth period;the diurnal temperature range were greater during the inflated period of the fructification,the sugar were accumulated more;the adequate sunshine were propitious to the photosynthesis;the effective accumulated temperature sufficed the quantity of heat of the winter jujube;the water and the humidity were suitable.The study is a direction for the climatic conditions analysis to the allopatry plant and test extension of winter jujube,and has certain guidance for achieving the goal of high quality and yield.