英语语法分析

Photoperiodism The response of an organism to changes in day length.

植物对于日照长度改变所引起的反应。

The respose was not caused by the effects of temperature, photosynthetic duration or pre-flowering photoperiodic after-effect but was typical photoperiodism.

这种反应属于典型的光周期现象，而不是由温度的替代作用、光合时间的改变或前期短日后效应引起的。