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北方冬季寒冷,一些原产南方的盆栽花卉必须移入室内越冬。越冬温度过低,会使一些花卉受到不同程度的冷害或冻害,轻则落叶,重则死亡。越冬温度过高,使它们在冬季继续生长,得不到应有的休眠或低温春化作用,对次年的生长发育和开花结果极为不利。米兰越冬温度以10~12℃为宜。过低易落叶,过高则顶芽容易萌动,长出细嫩枝叶,次年移出室外容易干梢,影响开花。山茶越冬温度以3~5℃为好。山茶的花芽于夏秋之交已经
The north is cold in winter, and some native south potted flowers have to be moved into the house for winter. Overwintering temperature is too low, some flowers will be subjected to varying degrees of cold damage or frost damage, ranging from leaves, heavy death. Winter over-temperature, so that they continue to grow in winter, not due to the role of dormancy or low temperature vernalization, the next year’s growth and development results are extremely unfavorable. Milan wintering temperature to 10 ~ 12 ℃ appropriate. Too low and easy to fall leaves, too high, then the top bud easy to sprout, grow delicate leaves, the following year to move out of the house easily dry tip, affecting flowering. Camellia winter temperature 3 ~ 5 ℃ as well. Camellia flower buds at the turn of summer has been