EASY
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Flowering in long day plants and short day plants does not occur when they are éxposed to light for a period respectively

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Important Questions on Plant Growth and Development

HARD
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
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?
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
The site of perception of light in plants during photoperiodism is:
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Phytochrome is a:
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
What is the site of perception of photoperiod necessary for induction of flowering in plants?
HARD
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism

Flowering can be inhibited when the plants exposed to light above the critical photoperiod is

EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Pigment involved in photo–perception in flowering is
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
In respect of photomorphogenesis plants are most sensitive to
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which of the following is day neutral plant?
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which of the following statements does not characterize photoperiodism?
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
With respect to photoperiodism, these are long day plants.
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
An apparatus commonly used to demonstrate phototropism is
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
The pigment involved in photomorphogenetic movements is
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
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
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Photoperiodic stimulus is received by
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Phytochrome is sensitive to
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which one is short day plant?
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
A plant which needs not less than 10 hours of light to flower is?
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Garner and Allard have worked on
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which of the following induces flowering in short day plant?
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Photoperiodic response of red and far-red wavelength is mediated by