V EGETATIVE P ROPAGATION  Type of asexual reproduction in plants and lower animal organisms, especially unicellular organisms.  Only one organism is.

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Presentation transcript:

V EGETATIVE P ROPAGATION  Type of asexual reproduction in plants and lower animal organisms, especially unicellular organisms.  Only one organism is involved.  The new organism is genetically identical (a clone) to the parent since there is no other set of DNA  -> It is not possible for the organism to adapt itself to environmental changes

C UTTING  A part of the stem or root of the source plant is planted and becomes a new plant that is independent of the parent  Shoots with leaves attached are usually used.  After you plant the cutting new roots and leaves will grow.  The shoot is cut on an angle to reduce harm to the parent plant. The new plant is genetically identical to the parent plant.

G RAFTING  In grafting two plants are used to develop a new plant with combined traits from two plants.  The scion is the above ground part of one plant in grafting. The scion is attached to the stock which is the rooted part of the plant.

B ULBS  A bulb contains an underground stem with attached leaves which contain much food. Also attached are lateral buds. At the center of the bulb is an apical bud which will produce leaves and a flower while the lateral buds will produce new shoots. As the plant grows and develops, it will form a new bulb.  The bulb splits and forms new bulbs called bulblets. Another way that bulbs reproduce vegetatively is by forming bulbils---very tiny bulbs---on their stems or flower stalks. In both cases the new plants are genetically identical to the original plant.  Examples for bulbs are onions, garlic, tulips or crocuses.

R UNNERS (S TOLONS )  For example used by strawberry plants  horizontal stems that spread from the sides  Entire new plants can develop from nodes located at intervolves on the runners  Above ground when terminal buds touch ground they grow roots

T UBERS  For example potatoes  Store nutrients to survive the winter and provide energy for regrowth  There are both, stem and root

C LONING  An organism that is genetically identical to the parent is called a clone.  Cloning occurs in nature when organisms such as bacteria or plants reproduce asexually.