Poinsettia is an example of a:
Long-day plant
Short-day plant
Day-neutral plant
Biennial plant
Related Questions
If a plant need 10 hours darkness than identify the condition under which it will flower
I. 14 hours day period
II. 10 hours dark period
III. 91/2 hours dark period
IV. 9 hours dark period
Choose the correct option
I only
I and II only
II and III only
I, II, and III only
The critical period in photoperiodism refers to the:
Minimum or maximum length of uninterrupted darkness required for flowering
Duration of light exposure needed for photosynthesis
Total length of the day-night cycle
Specific time of day when light is most effective
No correlation is observed between critical photoperiod and induction of flowering response in
Long day plant
Short day plant
Day neutral plant
Long-short day plant
A plant have 13 hours critical day light under which condition it will flower
Duration of light Duration of dark
period period
13 11
11 13
12 12
10 14
The site of perception of light in plants during photoperiodism is
Axillary bud
Leaf
Shoot apex
Stem
Florigen is produced in the region of
Leaves
Fruit
Root
Trunk
With respect to photoperiodism, these are long day plants.
Wheat, oat, soybean
Wheat, Xanthium, paddy
Wheat, poppy, soybean
Wheat, poppy, beet
Which of the given plants do not show any correlation between exposure to light duration and induction of flowering response?
Long-day plants
Short-day plants
Day-neutral plants
Intermediate-day plants
Which statement is false regarding the role of leaves in photoperiodism?
Leaves contain photoreceptors called phytochromes.
Light perception by leaves is essential for photoperiodism.
Leaves transmit signals related to day length.
Leaves directly induce flowering.
Vernalization and photoperiodism both influence:
Flowering
Photosynthesis
Seed germination
Vegetative growth
