Among the following substance, select the substance/(s) that can be employed to delay leaf senescence.
a. Autoclaved herring sperm DNA
b. Corn-kernel suspension
c. Coconut milk
1. Only a
2. Only a and c
3. Only b and c
4. all a, b and c
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Subtopic: Growth Hormones & Auxin |
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Which of the following methods can be used for hedge-making in a garden?
1. Vernalization
2. Exposure of plant to high-intensity light
3. Application of cytokinin
4. Irrigation
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Subtopic: Auxin Function |
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Which of the following types of movement is/are exhibited by Auxin?
1. Only centripetal
2. Only basipetal
3. Only acropetal
4. Both acropetal abd basipetal
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Subtopic: Growth |
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