A plant will only flower if the night length is longer than 14 hours. This plant is a
A) long-day plant.
B) short-night plant.
C) short-day plant.
D) day-neutral plant.

Question

Quizplus · Accepted Answer

This plant is a short-day plant because it requires a long night (longer than 14 hours) to flower. Short-day plants flower when the day length is shorter than a critical duration, not when the night is specifically short.

A Plant Will Only Flower If the Night Length Is