Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in:
1. vessels and tracheid differentiation
2. leaf abscission
3. annual plants
4. floral parts.

Subtopic:  Auxin Function | Cytokinin | Ethylene | Abscisic Acid |
 66%
AIPMT - 2008
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NEET 2026 - Target Batch - Vital
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