单词photoperiod
n.: 光周期
网络: 光照期；光照周期；老周期
光周期
复数：photoperiods
The experiment shows that photoperiod was an important environmental factor affecting armyworm development, reproduction and flight.
说明光周期是影响粘虫发育、殖和飞翔的重要环境因子之一。
The cline is considered the probable result of geographic trends in precipitation, temperature, and perhaps also photoperiod.
人们认为这种梯度变异可能是降水量，温度也许还有光周期等地理趋势造成的结果。
CO(constans) was an important gene involved in the photoperiod pathway controlling plant flowering time.
是植物开花时间光周期调控途径中的一个重要基因。
The results indicated that different populations of the grasshopper displayed different patterns of response to photoperiod and temperature.
结果表明：不同的中华稻蝗地理种群显示了不同的光周期和温度反应模式。
Photoperiod is one of the major factors which control the flowering time.
日照长度（即光周期）是影响开花时间的主要因素之一。
The results support the hypothesis that ambient temperature combined with photoperiod induce the thermogenic adjustments for small mammals.
研究结果支持了环境温度和光周期共同作用以调节动物产热变化的学说。
Passiflora Caerulea is the plant requesting long sunshine with Photoperiod effect. Long sunshine can promote budding and flowering.
西番莲具有光周期效应，为长日照植物，长日照可促进花芽分化形成，促进开花。
Melatonin, as internal photoperiod signal, regulates seasonal reproduction of animals.
褪黑激素则作为光周期信号分子调控动物季节性繁殖活动。
Effect of photoperiod and temperature on fertility alteration of short photoperiod- low temperature induced male sterile rice .
光温条件对短光低温不育水稻育性转换的影响。
In conclusion, photoperiod is an effective method to improve dairy goat production.
综合上述，延长光照可有效增进乳羊产能。