During the annual phenophase of winter jujube,the regular change of temperature is conducive to the growth and development of jujube.However,the abnormal temperature will disrupt the growth and development of winter jujube,and even lead to yield reduction or death in some specific phenological periods.In this paper,the temperature demand and disaster causing index of winter jujube trees during the phenological period were investigated,in order to lay the foundation for the managers of winter jujube to adjust the management mode more effectively and promote high and stable yield.
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