摘要：Using the modern information technology, this paper analyzes the 20 years of experimental observation data of wheat ear differentiation research team led by Professor Cui Jinmei. It reveals that in the appropriate sowing period, there is a quartic polynomial regression relationship between the sowing period and spike primordium period, namely between duration of vegetative growth stage and the average daily temperature. It is of great significance to determining the suitable sowing period of wheat.
关键词：Vegetative growth;Average daily temperature;Polynomial regression;Sowing period
