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Flower bud formation continues until temperatures become too cool in fall.
花芽苞不断地形成，直到秋天低温来临才停止。
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A plant hormone that promotes root formation and bud growth.
一种促进根的形成和芽的生长的植物激素。
youdao
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A plant hormone that promotes root formation and bud growth.
一种促进根的形成和芽的生长的植物激素。
youdao