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Transcript of Vegetative reproduction
Vegetative reproduction (vegetative propagation, vegetative multiplication, vegetative cloning) is a form of asexual reproduction in plants. It is a process by which new individuals arise without production of seeds or spores. It can occur naturally or be induced by horticulturists.
Natural Vegetative Reproduction
Vegetative reproduction by natural methods is very common among seed plants. Vegetative organs such as roots,
stems & leaves bear adventitious buds & bring about the formation of new plants.
The roots of some plants develop adventitious buds on them. Some tuberous adventitious roots besides possessing adventitious buds also contain sufficient quantities of food.These
buds sprout under suitable conditions. These sprouts may be separated & planted.
Eg:Dahlia & sweet potato.
Vegetative reproduction by stem: Aerial weak stems when they touch the ground, give of adventitious roots. Thereafter, if connection breaks from the parent plant, the portion with newly formed roots develops into an independent plant.
Tuber of potato is a swollen apical part of an underground stem branch & bears number
of nodes or eyes. Each eye bear one or many buds. New plants are produced from the buds present on
The runner is a slender prostate branch with a short & long internodes. It rises from the base
of the plant. It creeps on the ground & roots at nodes. Runner arises from the axillary bud & creeps
away some distance from the parent plant. It produces roots & grow into new plant. It may break off
the parent plant.Many runners are produced from a mother plant. They spread on the grounds on all
sides.On getting detached from the parent plant, the shoot develops as independent plants. The runner
is meant for vegetative propagation.
In some plants adventitious buds are developed on their leaves.
These buds usually remain dormant, when the leaf is attached with the plant. However when the leave come in contact with the soil, develop new plantkets along the margins.
Leaves touching the ground start new plants
In stem grafting, a common grafting method, a shoot of a selected, desired plant is grafted onto the stock of another type. In another common form called bud grafting, a dormant side bud is grafted onto the stem of another stock plant.