photoperiod

释义

n.

[昆][植] 光周期

在例句中理解 2 句

1. Day-length sensing is an important biological function in plants and photoperiod is one of the key ambient factor determining the time of plant flowering.

   日长感知是植物所具有的重要的生物学功能，光周期是决定植物开花时间的关键环境因子之一。

2. This research suggests to increase flower produce in months flower production is not enough by controling flowering period by photoperiod , light intensity or growth temperature.

   本研究拟以光周期、光照强度或生产温度对水仙百合做花期调控，期使其生产不足之月份产量增加；