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Pronunciation varies by accent · noun
The phase of a two-phase circadian rhythm associated with light and expenditure of energy..
It will be seen that light at one phase of the rhythm promoted flowering, and at the other phase inhibited it; thus there was a distinct manifestation of photophil and skotophil phases.
Short-day effects were seen to result when light was restricted to the photophil, while long-day effects were produced when light encroached into scotophil (figure 1.2).
He postulated that light falling on the plant in the scotophil phase would inhibit flowering, and in the photophil phase, enhance flower production.
Use photophil when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Photophil means The phase of a two-phase circadian rhythm associated with light and expenditure of energy..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
It will be seen that light at one phase of the rhythm promoted flowering, and at the other phase inhibited it; thus there was a distinct manifestation of photophil and skotophil phases.
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