英语词汇photoperiod怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	photoperiod
释义	photoperiod 英/ ?f??t???p??r??d / 美/ ?fo?to??p?ri?d / 简明释义 n.[昆][植] 光周期网络释义 1 ?光周期光周期短语 1 number of photoperiods 光周期数 2 response to photoperiods 光周期反应双语例句 1 Best studied are the effects of differing photoperiods on The Times of height growth cessation, bud formation and dormancy onset. 研究最彻底的是不同的光周期对高生长停止，萌芽和进入休眠的时间的效应。 2 This paper reviewed the effects of stress factors such as drought, high density, low nitrogen and long photoperiods on the grain yield and ASI. 综述了前人在干旱、密植、低氮、及长光胁迫对玉米产量与asi的影响。
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