Question

What are the disadvantages of vegetative propagation

Answer 1

The plants gradually lose their vigour as there is no genetic variation. They are more prone to diseases that are specific to the species. This can result in the destruction of an entire crop.

Since many plants are produced, it results in overcrowding and lack of nutrients

Answer 2

it does not produce the off springs with marked significance
it does not lead to variation
it leads to degradation and extinction of the species