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Question
What are long-day plants (LDP)? Give two examples.
Solution
- Plants that flower usually during summer are called long-day plants. They require a longer duration of light than the critical photoperiod, for flowering.
- They are called short-night plants as they require a short dark period.
- When the long dark period is interrupted by a brief flash of light, LD plants can flower e.g. pea, radish, sugar beat,
- Example: cabbage, spinach, wheat, poppy, etc.
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Which of the following is not a photosynthetic pigment?
Very Short Answer Question:
Define photoperiodism.
What is short day plant? Give any two examples.
Long Answer Question:
Describe the types of plants on the basis of photoperiod required, with the help of suitable examples.
Describe the mechanism of photoperiodic induction of flowering.
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.
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.
