Cosmos, chrysanthemum, poinsettia are the examples of _________________?
Correct answer: B. Short day plants
- A. Long day plants
- B. Short day plants
- C. Short night plants
- D. Long night plants
Explanation
Cosmos, chrysanthemum and poinsettia flower when nights are sufficiently long, so they are classified as short-day or long-night plants. “Short night” plants have the opposite photoperiodic response.
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