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我省夏播中熟杂交种,在条件适宜的情况下,一般播后五天出苗,二十五天拔节,雄穗生长锥伸长,三十五天雌穗开始分化,五十五天开花,六十五天子粒形成,九十五天成熟。出苗后平均每隔两天增加1片可见叶;每增加2—2.5片可见叶相应增加一层根,拔节后十天左右次生根全部形成,气生根接续发生,到开花期气生根层数固定。拔节后地上节间自下而上依次伸长,间隔1～3天,每个节间从始伸到定长历时9—13天,大约当
Summer sowing hybrid hybrids in the province, under appropriate conditions, the general emergence of five days after sowing, twenty-five days of jointing, tassel Elongation elongation, thirty-five days ear began to differentiate, fifty-five days flowering Sixty-five days of grain formation, ninety-five days mature. After the emergence of an average of every two days, an increase of visible leaves; each increase of 2-2.5 visible leaves corresponding increase in a layer of roots, ten days after jointing all secondary root formation, aerial roots continue, to the flowering stage of the number of roots fixed . After the jointing insoles from bottom to top in the order of elongation, an interval of 1 to 3 days, each node from the beginning to the fixed length of 9-13 days, about