研究人员们将一组小鼠在“夏季”模拟光照周期下（光照16小时，无光照8小时）从出生培养至断乳期，而将另一组小鼠在“冬季”模拟光照周期下（光照8小时，无光照16小时）培养至相同时间。
Researchers raised baby mice from birth to weaning in either "summer" light cycles of 16 hours of light and eight hours of dark or "winter" cycles of eight hours of light and 16 hours of dark.
对杂交中粳80优121在8个不同播期下的生育期、产量因素、理论产量与影响产量因素总积温、光照时数的相关研究。
The relationship between the growth period, yield component of japonica hybrid rice 80 you 121 and accumulated temperature, light duration was studied.
模拟结果表明，贵阳气温低、生育期长，其中稻生育期内温度适中、光照较强，干物质生产力高。
The result shows that Yunnan Guizhou Plateau is a high dry matter production area for middle rice, because of higher radiation, lower temperature and longer growth period.
结果表明：这一地区影响二代玉米螟分化的主要因子是幼虫期的光照周期和温度。
It was found that the major factors determining the differentiation of the Asian corn borer in the second generation were photoperiod and temperature in the larval period in that area.
连续黑暗时的发育历期比光照下的长，发育速率慢；
The growth period gets slowly and the growth speed get faster if in continues dark and high temperature.
连续黑暗时的发育历期比光照下的长，发育速率慢；
The growth period gets slowly and the growth speed get faster if in continues dark and high temperature.
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