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Questions and Answers
What is the term for a rooted stem that is detached from a mother plant?
What is the term for a rooted stem that is detached from a mother plant?
- Runner
- Layer (correct)
- Stolon
- Sucker
Which of the following plants is propagated by mound layering?
Which of the following plants is propagated by mound layering?
- Strawberry
- Black raspberry
- Bermuda grass
- Apple rootstock (correct)
What is an advantage of layering compared to other propagation methods?
What is an advantage of layering compared to other propagation methods?
- It requires a greenhouse and mist bench
- It allows for the propagation of a relatively small number of large-size plants (correct)
- It can produce a large number of small plants
- It is a fast process
Why is layering still used today despite being an ancient technique?
Why is layering still used today despite being an ancient technique?
What is a limitation of layering compared to other propagation methods?
What is a limitation of layering compared to other propagation methods?
What is an example of a species that uses layering as a natural means of asexual reproduction?
What is an example of a species that uses layering as a natural means of asexual reproduction?
What is the primary purpose of using mound layering in fruit tree propagation?
What is the primary purpose of using mound layering in fruit tree propagation?
What is the consequence of disturbing roots when cutting the plant back to 1 inch above ground level in the second year?
What is the consequence of disturbing roots when cutting the plant back to 1 inch above ground level in the second year?
What is the typical outcome of mound layering in the first year after cutting the plant back to 1 inch above ground level?
What is the typical outcome of mound layering in the first year after cutting the plant back to 1 inch above ground level?
Why is it important to plant the stock plants in fertile, well-drained soil before starting mound layering?
Why is it important to plant the stock plants in fertile, well-drained soil before starting mound layering?
What is the primary advantage of using mound layering over other layering techniques?
What is the primary advantage of using mound layering over other layering techniques?
What is the limitation of using mound layering in fruit tree propagation?
What is the limitation of using mound layering in fruit tree propagation?
What is the main purpose of the 'rat-tail' appearance in vegetative shoots?
What is the main purpose of the 'rat-tail' appearance in vegetative shoots?
What type of stem produces new 'daughter plants' at the nodes when growing horizontally?
What type of stem produces new 'daughter plants' at the nodes when growing horizontally?
What is a key difference between runners and stolons?
What is a key difference between runners and stolons?
What is an advantage of using stolons, runners, and rhizomes for asexual propagation?
What is an advantage of using stolons, runners, and rhizomes for asexual propagation?
What can be done to the 'daughter plants' produced by stolons, runners, and rhizomes to create new, independent plants?
What can be done to the 'daughter plants' produced by stolons, runners, and rhizomes to create new, independent plants?
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Study Notes
Vegetative Shoots
- In late summer, vegetative shoots develop a "rat-tail" appearance, elongated and curled with small leaves, adapted for easy rooting when in contact with a suitable medium.
- These shoots can be buried, rooted, and then detached from the stock plant to form new plants.
Stolons, Runners, and Rhizomes
- Specialized stems used for natural spreading and colonization by certain plant species.
- Grow horizontally from the crown, above or below ground, producing new "daughter plants" at the nodes.
- Can be cut off between the nodes and treated like naturally occurring rooted layers.
- Examples: runners of strawberry and spider plant, stolons of Bermuda grass, suckers of hazelnut and paw paw.
Layering
- A form of rooting cuttings where adventitious roots are initiated on a stem while still attached to the mother plant.
- The rooted stem is then detached from the parent plant to be established on its own roots.
- Some plants use layering as a natural means of asexual reproduction, such as tip layers of black raspberry and trailing blackberries.
Layering - Advantages and Limitations
- Allows for the propagation of a relatively small number of large-size plants.
- Short period of time to develop large clones in an outdoor environment.
- Minimal amount of supplies and facilities needed.
- Does not require a greenhouse, mist bench, etc.
- Highly mechanized, used to mass-propagate clonal fruit tree rootstocks.
Mound Layering
- A widely used layering technique where detached rooted shoots are known as stool shoots.
- Technically demanding, with timing being very important to avoid damage.
- Healthy stock plants need to be planted at least one year before mound layering begins.
- Plant in fertile, well-drained soil to develop a vigorous plant with a well-formed root system.
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