Higher air temperature in spring causes earlier first flowering dates, but air temperature in summer, autumn and winter of last year has no significant impact.
春季气温越高，始花期越早，而上年夏、秋、冬季的气温对始花期没有显著性影响。
Air temperature in spring and late winter mainly influences first-flowering dates, and the higher the air temperature, the advancer the flowering dates.
气温对始花期的影响主要集中在春季及冬末，春季气温的升高使始花期有提前的效应。
Air temperature in spring and late winter mainly influences first-flowering dates, and the higher the air temperature, the advancer the flowering dates.
气温对始花期的影响主要集中在春季及冬末，春季气温的升高使始花期有提前的效应。
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