Auxins are produced mainly by young developing leaves on actively growing shoots.

生长素主要是从旺盛生长新梢上正在发育的幼叶产生出来.

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Hormones, especially AUXINS, are involved in the promotion of elongation.

激素尤其是植物生长素可以促进细胞壁的延伸.

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Plant hormones include auxins, gibberellins, and cytokinins.

植物激素有脱落素 、 生长激素 、 赤霉素与细胞分裂素.

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