EASY
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Spinach is an example of long-day plant.

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Important Questions on Plant Growth and Mineral Nutrition

HARD
A few normal seedlings of tomato were kept in a dark room. After a few days, they were found to have become white-colored like albinos, Which of the following terms will you use to describe them?
MEDIUM
In an experiment represented in the schematic below, a plant species was grown in different day and night cycles and its photoperiodic flowering behavior was noted. This species is a

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EASY
What is the site of perception of photoperiod necessary for induction of flowering in plants?
HARD
Explain photoperiodism and discuss it in Xanthium and Cucumis.
MEDIUM
In an experiment investigating photoperiodic response, the leaves of a plant are removed. What is the most likely outcome?
EASY
Pigment involved in photo–perception in flowering is
MEDIUM
One set of a plant was grown at 12 hours day 12 hours night period cycles, and it flowered, while in the other set night phase was interrupted by a flash of light, and it did not produce flower. Under which one of the following categories will you place this plant?
EASY
In respect of photomorphogenesis plants are most sensitive to
EASY
Which of the following induces flowering in short day plant?
EASY
Which of the following is day neutral plant?
EASY
An apparatus commonly used to demonstrate phototropism is
EASY
The pigment involved in photomorphogenetic movements is
EASY
Photoperiodic stimulus is received by
MEDIUM
With respect to photoperiodism, these are long day plants.
EASY
A plant which needs not less than 10 hours of light to flower is?
MEDIUM
Which of the following statements does not characterize photoperiodism?