Quiz on Photoperiodism, Vernalization, and Seed Dormancy

What is photoperiodism?

• The method of plant propagation

• The process of seed germination

• The effect of temperature on plant growth

• The phenomenon of physiological changes in response to light duration

Which of the following is a short day plant?

• Cabbage

• Wheat

• Rice

• Spinach

What type of light exposure inhibits flowering in short day plants?

• Blue light

• Green light

• Yellow light

• Red light

What is the term for the cold treatment that promotes early flowering?

• Dormancy

• Germination

• Vernalization

• Photoperiodism

Which of the following is an example of a day neutral plant?

• Chrysanthemum

• Tomato

• Clover

• Soybean

What is the role of florigen in plants?

• To enhance root growth

• To promote seed dormancy

• To stimulate flowering

• To inhibit flowering

Which type of dormancy is caused by external factors affecting the embryo?

• Exogenous dormancy

• Endogenous dormancy

• Physiological dormancy

• Morphological dormancy

What is a characteristic of obligate short-day plants?

• They can flower under any light condition

• They require long nights to flower

• They flower only in winter

• They need continuous light to flower

Which of the following is a type of physiological dormancy?

• Mechanical dormancy

• Photo dormancy

• Chemical dormancy

• Physical dormancy

What is the optimal temperature range for vernalization?

• 15-20°C

• 10-15°C

• 1-6°C

• 0-4°C