Question

Based on light duration, plants are divided into different types. Which one is not one of those ?

• A. Short-day plants
• B. Long-day plants
• C. Mid-day plants
• D. Day-neutral plants

Hint:

Photoperiodic classes are short-day, long-day and day-neutral only

Answer 1

The Correct Option is C

Step 1: Photoperiodism classifies flowering plants by the length of daylight or darkness needed to induce flowering.

Step 2: The three recognized categories are short-day plants (flower when day length is below a critical value), long-day plants (flower when day length is above a critical value), and day-neutral plants (flowering is not controlled by photoperiod).

Step 3: There is no established category called mid-day plants in photoperiodism, it is not used in plant physiology.

Step 4: So the type that does not exist is mid-day plants.