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Q. No._________ is a period when growth and development is temporarily stopped.
1. Dormancy
2. Abscission
3. Senescence
4. Validation
Subtopic: Seed Dormancy (OLD NCERT) |
81%
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Florigen results in the conversion of
1. Reproductive bud → Vegetative bud
2. Shoot apex → Flowering bud
3. Root apex → Reproductive bud
4. Vegetative bud → Lateral shoot
1. Reproductive bud → Vegetative bud
2. Shoot apex → Flowering bud
3. Root apex → Reproductive bud
4. Vegetative bud → Lateral shoot
Subtopic: Growth Hormones & Auxin |
68%
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Which type of plants can blossom throughout the year?
1. Long-day plants
2. Short-long day plants
3. Short-day plants
4. Day-neutral plants
1. Long-day plants
2. Short-long day plants
3. Short-day plants
4. Day-neutral plants
Subtopic: Photoperiodism (OLD NCERT) |
73%
From NCERT
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Which of the following is an example of short-day plant?
1. Tobacco
2. Sugarbeet
3. Wheat
4. Radish
1. Tobacco
2. Sugarbeet
3. Wheat
4. Radish
Subtopic: Photoperiodism (OLD NCERT) |
62%
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Most of the winter flowering plants belong to
1. Short long day plants
2. Long day plants
3. Short day plants
4. Day neutral plants
1. Short long day plants
2. Long day plants
3. Short day plants
4. Day neutral plants
Subtopic: Photoperiodism (OLD NCERT) |
57%
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Cucumber and tomato are the examples of
1. Day-neutral plants
2. Short day plants
3. Long-day plants
4. Long short-day plants
1. Day-neutral plants
2. Short day plants
3. Long-day plants
4. Long short-day plants
Subtopic: Photoperiodism (OLD NCERT) |
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The site of perception of light in plants for flowering is
1. Stems
2. Roots
3. Leaves
4. Fruits
1. Stems
2. Roots
3. Leaves
4. Fruits
Subtopic: Photoperiodism (OLD NCERT) |
88%
From NCERT
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The hormonal substance which migrates from leaves to shoot apices to induce flowering is
1. Dormin
2. Zeatin
3. Kinetin
4. Florigen
1. Dormin
2. Zeatin
3. Kinetin
4. Florigen
Subtopic: Growth Hormones & Auxin |
56%
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Some plants like sugarbeet and cabbage require low temperatures for flowering. This phenomenon is called
1. Photoperiodism
2. Parthenocarpy
3. Vemalisation
4. Abscission
1. Photoperiodism
2. Parthenocarpy
3. Vemalisation
4. Abscission
Subtopic: Vernalization (OLD NCERT) |
84%
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Which of the following is incorrect about vernalisation?
1. It prevents precocious reproductive development
2. It is observed in winter variety of wheat
3. Flowering is stimulated by low temperature
4. It is the resting stage of seeds
1. It prevents precocious reproductive development
2. It is observed in winter variety of wheat
3. Flowering is stimulated by low temperature
4. It is the resting stage of seeds
Subtopic: Vernalization (OLD NCERT) |
66%
From NCERT
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