Question

What are the types of senesence

Answer 1

Like all organisms, plants grow old and die. Their life span may vary from a few years to few days. Even before the death of the whole plant, it is likely that a number of its organs and tissues have died earlier. As the young plant grows old, it undergoes ageing and develops into a mature plant in an orderly fashion. This phenomenon of deteriorative changes with ageing is called senescence.

Senescence may be defined as the period between reproductive maturity and death of a plant or plant part. During senescence the functional capacity decreases, cellular break down and metabolic failures increase.

The branch of botany that studies ageing, senescence and abscission in plants is called as phytogerontology.

Answer 2

Whole plant senescence.
In plants such as wheat, rice, gram and mustard the plants die after seed production. ...
Sequential Senescence. In perennial plants, the tips of the main shoot remain meristematic. ...
Shoot Senescence. ...
Synchronous Senescence....

I hope it's help u....

#Ratnesh