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A regeneration system of plantlets was established with apical bud of Acer negundo L.
初步建立了复叶槭顶芽组培再生体系.
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Shoots grow in flushes , showing rapid growth , then stopping as the apical bud aborts.
花苞最先开始快速的涨大,花苞的尖牙会自然的掉落.
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