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在大面积330自交系田里,我们选择了长势、发育基本一致的10棵有代表性的植株,逐日测量雄穗生长量;散粉时逐日调查花药裂数,另取有代表性植株300棵,逐日调查散粉株数,分别观察到的330个体与群体的散粉规律是: 雄穗平均每天生长2.4厘米,平均长40厘米时雄穗开始散粉。一枝雄穗平均有6315个花药,其中主轴1290个,侧枝5025个,主轴花药占20.4%,侧枝花药占79.6%。在正常气候条
In a large area of 330 inbreds, we selected ten representative plants with similar growth and development, and measured the growth of tassel daily. When the powder was scattered, the number of anther was investigated daily, and another 300 representative plants , Daily investigation of the number of scattered powder, were observed in 330 individuals and groups loose powder rule is: tassel average growth of 2.4 cm per day, an average of 40 cm when the tassel began to loose powder. On average, there are 6,315 anthers, including 1290 major axes, 5025 collateral spines, 20.4% spindle arches, and 79.6% collateral anthers. In normal climates