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long-day plant
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long-day plant
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工学
〔风景园林植物类别〕
释
long-day plant
长日照花卉
植物在生长发育过程中需要有一段时期，每天光照时数超过临界时长（一般在12小时以上，大多为14～17小时），或暗期必须短于某一时数，才能形成花芽和开花。日照时间越长，这类植物生长发育越快，营养积累越充足，花芽多而充实。反之，如果不能满足这一光照条件，或超过临界暗期，则花芽就不能形成或形成受阻。
Biology
long-day plant
长日照植物
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