Long day plant's produces flowers when they exposed to :

Long day plants show flowering when

If a plant produces flowers when exposed to alternating periods of 5 hours light and 3 hours dark in a 24-hour cycle, the plant should be

If a plant produces flowers when exposed to alternating periods of 5 hours light and 3 hours dark in a 24-hour cycle, the plant should be a

If a plant produces flowers when exposed to alternating periods of 5 hours light and 3 hours dark in a 24-hour cycle, the plant should be a

A long day plant flowers only when it is exposed to

A long day plant flowers only when it is exposed to