1. Interest Grabber Rooting for a Plant
Section 24-3
Interest Grabber
Rooting for a Plant
People who have gardens or houseplants often grow extra plants by making cuttings—leafy stem pieces or small sprigs of plants—that are then partially buried in soil or in a special rooting mixture to “root.” In this process, the cut stems develop roots. When the roots are large enough, the cutting is potted or put into the ground, where it grows into a complete plant. This process works well with many plants, including begonias, geraniums, coleus, African violets, forsythia, and willow.

2. Interest Grabber continued
Section 24-3
Interest Grabber continued
1. For a gardener, what might be an advantage of growing plants from cuttings rather than from seeds?
2. Herbaceous plants, such as coleus, root faster than do woody plants, such as willow. How would you explain this difference?
3. How would plants grown from cuttings compare to the plant from which the cuttings were taken? Why would this be an advantage for a gardener?

3. 24–3 Plant Propagation and Agriculture
Section 24-3
Section Outline
24–3 Plant Propagation and Agriculture
A. Vegetative Reproduction
B. Plant Propagation
1. Cuttings
2. Grafting and Budding
C. Agriculture
1. Worldwide Patterns of Agriculture
2. Changes in Agriculture

4. Compare/Contrast Table
Section 24-1
Compare/Contrast Table
Comparing Plant Propagation Methods
Method Procedure
Cuttings
A length of stem that includes lateral buds is cut from the parent plant and partially buried in soil or rooting mixture to take root.
A piece of stem is cut from the parent plant and attached to another plant.
A piece of lateral bud is cut from the parent plant and attached to another plant.
Grafting
Budding

5. KEY CONCEPT Plants can produce genetic clones of themselves through asexual reproduction.

6. Plants can reproduce asexually with stems, leaves, or roots.
Asexual reproduction allows a plant to make copies of itself.
Regeneration is one type of asexual reproduction.
plants grow a new individual from fragment of parent
occurs when piece of a stem, leaf, or root falls off parent plant

7. Vegetative reproduction is another type of asexual reproduction.
stems, leaves, or roots attached to parent plant produce new individuals
specific adaptations include stolons, rhizomes, and tubers

8. Humans can produce plants with desirable traits using vegetative structures.
Vegetative propagation takes advantage of plants’ ability to reproduce asexually.
Humans use one plant with desirable traits to produce many individuals.
cutting of leaves or stems may grow new roots
grafting joins the parts of two plants together to form a hybrid plant