Question

Progressive senescence occurs in

• A. Annual plants
• B. Perennial plants
• C. Biennial plants
• D. All of the above

Answer 1

The correct option is B Perennial plants

Senescence refers to a number of controlled processes which finally culminate in the death of the plant part. There are different forms of senescence which are observed in the plants during ageing. Progressive senescence is the form in which there is the gradual death of all the parts of the plant. The parts above the ground are affected first. This type of senescence is observed in the perennial plants.

Thus, the correct answer is option B.