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The photoperiod in plants is perceived at

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Important Questions on Plant Growth and Development

MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
In an experiment investigating photoperiodic response, the leaves of a plant are removed. What is the most likely outcome?
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?
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
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
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
What is the site of perception of photoperiod necessary for induction of flowering in plants?
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 action spectrum of photoperiodism
MEDIUM
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which one is short day plant?
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
The pigment involved in photomorphogenetic movements is
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
The term “photoperiodism” was proposed by or The phenomenon of photoperiodism in plants was discovered by
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Phytochrome is sensitive to
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
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
In respect of photomorphogenesis plants are most sensitive to
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
For germination of seed, which light is necessary
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Photoperiodic response of red and far-red wavelength is mediated by
HARD
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism

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

HARD
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Hypothetical florigen could be produced prematurely in long day plant by exposing it to
EASY
Biology>Plant Physiology>Plant Growth and Development>Photoperiodism
Which of the following induces flowering in short day plant?