玉米雌雄穗分化进程的预报方法

通过田间分期播种和人工气候箱的模拟试验,研究玉米发育与温度的关系,结果表明,展开叶片数的增加速率与日平均气温和展开叶片数之间存在曲线关系。以实测数据为基础,建立描述这种曲线关系的两个方程。因此,可以预报逐日的展开叶片数。应用展开叶片数与穗发育阶控之间的关系,就能做出雌堆穗分化进程的预报。

A method for forecasting of ear and tassel development in maize

The relationship between development of maize "and temperature was studied through stage by stage sowing experiments in the field and simulation experiments in pliytotron.The results show that the rate of leaf appearance was curvilineally related to the mean daily temperature and the number of appearance leaves.Two equations describing these curves were set up on the basis of observations.By applying the relationship between number of appearance leaves and ear development stage, the forecasting of car and tassel development courses can be made.