Question: Which of the following is a short-day plant?
Options:
Wheat
Barley
Paddy
Sugar beet
🔑 Key Points
🌞 Photoperiodism
→ Photoperiodism is the response of plants to the daylight period, especially concerning flowering behavior.
→ Short-day plants: Require a day length of less than 12 hours for flower initiation. Examples include tobacco, soybean, paddy, and many tropical plants.
→ Long-day plants: Require more than 14 hours of daylight for flower initiation. Examples include wheat, barley, sugar beet, and castor.
→ Day-neutral plants: These plants are unaffected by the day length. Examples include maize, tomato, buckwheat, sunflower, cotton, and cucumber.
🌞 Photoperiodism
→ Photoperiodism is the response of plants to the daylight period, especially concerning flowering behavior.
→ Short-day plants: Require a day length of less than 12 hours for flower initiation. Examples include tobacco, soybean, paddy, and many tropical plants.
→ Long-day plants: Require more than 14 hours of daylight for flower initiation. Examples include wheat, barley, sugar beet, and castor.
→ Day-neutral plants: These plants are unaffected by the day length. Examples include maize, tomato, buckwheat, sunflower, cotton, and cucumber.