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प्रश्न
What is short day plant? Give any two examples.
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उत्तर
1. Critical photoperiod is the length of photoperiod above or below which flowering occurs. Short Day Plants usually flower during winter and late summer when day length is shorter than the critical photoperiod.
2. These are called long night plants because they require long uninterrupted dark period/ night for flowering.
3. If the dark period is interrupted even by a flash of light, SDP will not flower.
4. Some of the short-day plants are Dahlia, Tobacco, Chrysanthemum, Soybean (Glycine max), Cocklebur (Xanthium), cotton, etc.
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संबंधित प्रश्न
What do you understand by photoperiodism and vernalisation? Describe their significance
Which one of the following is NOT an example of long day plants?
The site of perception of light in plants during photoperiodism is ______
The photoperiod in plants is perceived at ______.
______ of a vegetative plants are the sites of photoperiodic perception.
Light plays an important role in the life of all organisms. Name any three physiological processes in plants which are affected by light.
Nicotiana tabacum, a Short Day Plant, when exposed to more than critical period of light fails to flower. Explain.
Given below function performed by plant hormone. Which hormone is responsible for the given action?
Induce flowering in LDP
How many statements are correct for phytochromes?
- Phytochrome pigment exists in two forms.
- Two forms of phytochrome are interconvertible.
- Pfr form of phytochrome inhibits flowering in SDP, during day time.
- Pfr form of phytochrome inhibits flowering in LDP, during day time.
- During day time Pr form accumulates in plants.
While studying flowering behaviour in ______ and ______ plant, Garner and Allard discovered photoperiodism.
