Question

Senescence is an active developmental cellular processes in the growth and functioning of a flowering plant, is indicated in

• A. Annual plants
• B. Floral parts
• C. Leaf abscission
• D. Vessels and tracheids

Answer 1

The correct option is C Leaf abscission

Senescence is not confined only to whole plant,it may be limited to a particular organ such as leaf and flower or cells such as phloem and xylem. Abscission is natural shedding of leaves,foliage branches,fruits floral parts etc. According to Leopold (1967) abscission is a senescence phenomenon. Senescence as an active developmental cellular process in the growth and functioning of a flowering plant,is indicated in leaf abscission.

So, the correct answer is 'Leaf abscission.'