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UNIT
4The reproduction function
Natural Science 2. Secondary Education
ASEXUAL REPRODUCTIONIN GARDENING
UNIT
4Asexual reproduction in gardening
ASEXUAL REPRODUCTION IS USED IN GARDENING TO CREATE NEW PLANTS
PROPAGATION USING
CUTTINGS
PROPAGATION USING GRAFTS
PROPAGATION USING
LAYERING
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A number of different methods are used. The three main methods are:
Natural Science 2. Secondary Education
• This method involves cutting a piece of the stem with buds from the mother plant (this is called a cutting). The cutting is then placed in soil or water until it grows roots, resulting in a new plant.
Propagation using cuttings
1: A small part of the stem with buds is cut from the mother plant (a cutting).
2: The cutting is placed in soil and develops roots, forming a new plant.
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UNIT
4Asexual reproduction in gardening
Natural Science 2. Secondary Education
• Grafts are shoots from one plant that are joined to the stem of another plant of a similar species.
• This technique is commonly used with fruit trees.
1: The stem of the plant that is going to receive the graft is split, and the stem from the donor plant is joined to this cut.
2: The cut heals and the new branch becomes part of the receptor plant.
UNIT
4Asexual reproduction in gardening
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Propagation using grafts
Natural Science 2. Secondary Education
• This technique is used to make new plants from one of the mother plant’s branches. It involves bending a branch towards the ground until it is partially buried in the soil.
• Once the buried branch grows roots, it is detached from the mother plant, becoming a new plant.
1: One of the mother plant’s branches is bent towards the ground until it is partially buried in the soil.
2: When it grows roots, the new plant is separated from the mother plant.
UNIT
4Asexual reproduction in gardening
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Propagation using layering
Layering
Natural Science 2. Secondary Education