在河北省邯郸地区,巨峰萄葡花芽分化开始于4月中旬,4月下旬为花序开始分化盛期。花序开始分化后不久出现二级轴,冬季休眠前分化到三级轴,翌春4月7日花萼开始分化,4月14日花冠开始分化。4月17日雄蕊开始分化,4月19日雌蕊开始分化,4月21日柱头形成,胚珠开始分化。 Handan in Hebei Province, Jupe grape flower bud differentiation began in mid-April, late April inflorescence began to divide the peak. The inflorescence began to differentiate soon after the secondary axis appeared. Before winter dormancy, it differentiated to the third axis. On April 7, the next day, the calyx began to differentiate. On April 14, the corolla began to differentiate. On April 17, the stamens began to differentiate. On April 19, the pistil began to differentiate, and on April 21, the stamens formed and the ovule began to differentiate.