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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
Which of the following is not a photosynthetic pigment?
What do you understand by photoperiodism and vernalisation? Describe their significance
Describe the mechanism of photoperiodic induction of flowering.
Which one of the following is NOT an example of long day plants?
In short-day plants (SDP), flowering is induced by ______.
______ of a vegetative plants are the sites of photoperiodic perception.
Classify the following plants into Long-Day Plants (LDP), Short Day Plants (SDP) and Day Neutral Plants (DNP) Xanthium, Henbane (Hyoscyamus niger), Spinach, Rice, Strawberry, Bryophyllum, Sunflower, Tomato, Maize.
Light plays an important role in the life of all organisms. Name any three physiological processes in plants which are affected by light.
Fill in the blanks:
Pigment involved in Photoperception in flowering plants is ______.
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.
