According to the model, organ identity in each whorl is determined by unique combination of the three organ identity gene activities.
英
美
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長(cháng)日植物:指日照長(cháng)度大于一定臨界日長(cháng)才能開(kāi)花的植物。短日植物:指日照長(cháng)度小于一定臨界日長(cháng)才能開(kāi)花的植物。
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国内精品美女A∨在线播放xuan