Question

what is critical photoperiod??​

Answer 1

Answer:

critical daylength (critical day, critical photoperiod)：The length of day or light period in a 24-hour cycle required to induce flowering of long-day plants or to inhibit flowering of short-day plants. ... The flowering of day-neutral plants is triggered when plants reach a certain age.

Answer 2

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The length of day or light period in a 24-hour cycle required to induce flowering of long-day plants or to inhibit flowering of short-day plants. ... The flowering of day-neutral plants is triggered when plants reach a certain age.