How do natural variations such as the changing day length make such profound alterations to physiology and behaviour?
昼夜长短之类的自然变化是如何对野生动物产生如此深刻的生理变化及行为变化呢？
In plants, leaf fall and flowering are common responses to seasonal changes in day length.
在植物中，落叶和开花是对日长季节性改变的普遍反应。
Before inflorescence, the day length requirement was not strict.
开花前，对日长要求不严格。
Photoperiod responses were studied for diverse type of soybean varieties in different latitude area by using simulated nature day length.
采用模拟自然光照的动态光照处理，对不同纬度不同类型大豆品种，进行了光照特性研究。
Photoperiod responses were studied for diverse type of soybean varieties in different latitude area by using simulated nature day length.
采用模拟自然光照的动态光照处理，对不同纬度不同类型大豆品种，进行了光照特性研究。
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