單詞
photoperiodism
英 [f??t??'p??r??d?z(?)m]
美[,foto'p?ri?,d?z?m]
基本信息
- n. [農(nóng)學(xué)] 光周期現(xiàn)象（=photoperiodicity）；[生物] 光周期性（=photoperiodicity）
英文詞源
- photoperiodism (n.)
- 1920, from photoperiod (1920, from photo- + period) + -ism.
雙語例句
- 1. For experimental purposes , scientists originally assumed that photoperiodism worked through photosynthesis.
- 為了進(jìn)行實驗, 科學(xué)家們最初曾經(jīng)設(shè)想,光周期現(xiàn)象可能是通過光合作用實現(xiàn)的.
來自辭典例句
- 2. What is the adaptive significance of photoperiodism during evolution?
- 在演化過程中生物或植物以光周期適應(yīng)(環(huán)境)之意義為何?
來自互聯(lián)網(wǎng)
- 3. But there were obvious spring and strong photoperiodism spike cultivars . These need to improvement.
- 近期育成的大穗品種多有明顯的春性化、強(qiáng)感光性, 需要加以改進(jìn).
來自互聯(lián)網(wǎng)
photoperiodism相關(guān)單詞