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。

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Apples, for example, release ethylene gas, a plant hormone.

例如苹果，释放出乙烯气体，这是一种植物激素。

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Of course, alkaloids can serve as plant hormone as well.

当然，生物碱也可能作为植物的激素。

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Of course, alkaloids can serve as plant hormone as well.

当然，生物碱也可能作为植物的激素。

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