Natural vegetative propagation Flashcards
Define natural vegetative propagation
Natural vegetative propagation involves forming new plants from a stem, root, leaf or bud
In natural vegetative propagation, some structures are altered/modified for what reason?
Sometimes in natural vegetative propagation, the structures that are used are altered or modified for reproduction; sometimes they are not altered.
Define runners
Runners are horizontal stems that run (or grow) above ground and from which new plants grow
Do runners normally have short or long internodes?
Runners normally have long internodes.
What forms at each node?
Buds are formed at each node
What can each bud on a plant give rise to?
Each bud may give rise to a new plant, complete with its own root system.
Once a new plant has developed from a bud, how will it continues to process?
In time, the new plant will continue the process by producing its own runners
Give two examples of plants with runners
buttercups and strawberries
What category are runners in for plant parts?
stems
What category are root tubers in for plant parts?
root
What category are bulbs in for plant parts?
buds
Define a root tuber
A root tuber is a swollen, underground root that remains dormant during winter and from which new plants may grow.
Where do new shoots grow from a plant?
New shoots grow from the buds at the base of the old stem, which has withered away
Give 3 examples of plants with root tubers
Examples of plants that have root tubers are dahlia, yam and sweet potato.
What can the leaves of some plants do when detached from the parent plant?
The leaves of some plants will readily grow into new plants if they are detached from the parent plant and land in soil.
Give 3/4 examples of plants that can be propagated from leaves
Examples of plants that can be propagated from leaves are begonia, cactus and succulent plants (such as Kalanchoe).
Define a bulb
A bulb is a modified bud.
A bulb contains an underground what that is reduced in size?
A bulb contains an underground stem reduced in size.
What is attached to the underground stem that is reduced in size?
Numerous leaves are attached to this stem.
What is important to note about the leaves attached to the underground stem
Each leaf is swollen with stored food.
In a bulb, what does the centre of the bulb contain?
The centre of the bulb has an apical bud, which can produce leaves and a young flower.
Where are lateral buds found in a bulb?
Lateral buds are located between the stem and each leaf.
What can the lateral buds in a bulb do, come spring time?
These buds can each form a new shoot in spring.
What happens to the old leaves of the bulb? What do they do as a result of this?
The old leaves become dry and scaly and serve to protect the new bulb(s) inside.
Give 3 examples of plants with bulbs
Examples of plants with bulbs include onion, daffodil and tulip
