Question

why is this mode practiced for growing some types of plant​

Answer 1

Answer: Vegetative propagation method is used for growing certain plants which do not produce viable seeds. It is also used for growing of plants bearing superior traits, because they produce genetically identical plants. ... Plant which require lot of care during early stages of development are also grown by this method.

Answer 2

Vegetative propagation is mainly practiced for the

Plants that have lost the capacity to produce seeds.

Plants whose parent plant characters are preserved

Plants biotype can be retained and multiplied in deficiency without any change or variation.The examples are banana and seedless grapes.