生理学方面的研究证明,气温能够影响植物体的所有生活机能.气温决定着反应速度和对营养物质吸收的强度,从而也就影响着籽粒的化学组成.每一种生物化学过程,都有三个基本的特征.即最低点,化学反应开始进行;最适点,反应速度达到最快;最高点,反应速度从最适点开始下降,之后逐渐下降至零.在植物体中发生的所有过程对于气温、(采用隔离法获得的气温)作用强度的依赖关系,在其他条件固定时,是由一条具有最大峰值的曲线所反映的规律决定的. Physiological studies have shown that air temperature can affect all life functions of the plant body, the temperature determines the reaction speed and the intensity of nutrient absorption, thus affecting the chemical composition of the grain Each of the three biochemical processes, there are three basic The lowest point, the chemical reaction begins, the most suitable point, the fastest reaction rate, the highest point, the reaction rate from the optimum point began to decline, and then gradually decreased to 0. All the processes in the plant body temperature , And (the temperature obtained by the isolation method) depends on the intensity of action. When the other conditions are fixed, the law reflected by the curve with the largest peak is determined.