Natural vegetative propagation

Question 1

Define natural vegetative propagation

Answer 1

Natural vegetative propagation involves forming new plants from a stem, root, leaf or bud

Question 2

In natural vegetative propagation, some structures are altered/modified for what reason?

Answer 2

Sometimes in natural vegetative propagation, the structures that are used are altered or modified for reproduction; sometimes they are not altered.

Question 3

Define runners

Answer 3

Runners are horizontal stems that run (or grow) above ground and from which new plants grow

Question 4

Do runners normally have short or long internodes?

Answer 4

Runners normally have long internodes.

Question 5

What forms at each node?

Answer 5

Buds are formed at each node

Question 6

What can each bud on a plant give rise to?

Answer 6

Each bud may give rise to a new plant, complete with its own root system.

Question 7

Once a new plant has developed from a bud, how will it continues to process?

Answer 7

In time, the new plant will continue the process by producing its own runners

Question 8

Give two examples of plants with runners

Answer 8

buttercups and strawberries

Question 9

What category are runners in for plant parts?

Answer 9

stems

Question 10

What category are root tubers in for plant parts?

Answer 10

root

Question 11

What category are bulbs in for plant parts?

Answer 11

buds

Question 12

Define a root tuber

Answer 12

A root tuber is a swollen, underground root that remains dormant during winter and from which new plants may grow.

Question 13

Where do new shoots grow from a plant?

Answer 13

New shoots grow from the buds at the base of the old stem, which has withered away

Question 14

Give 3 examples of plants with root tubers

Answer 14

Examples of plants that have root tubers are dahlia, yam and sweet potato.

Question 15

What can the leaves of some plants do when detached from the parent plant?

Answer 15

The leaves of some plants will readily grow into new plants if they are detached from the parent plant and land in soil.

Question 16

Give 3/4 examples of plants that can be propagated from leaves

Answer 16

Examples of plants that can be propagated from leaves are begonia, cactus and succulent plants (such as Kalanchoe).

Question 17

Define a bulb

Answer 17

A bulb is a modified bud.

Question 18

A bulb contains an underground what that is reduced in size?

Answer 18

A bulb contains an underground stem reduced in size.

Question 19

What is attached to the underground stem that is reduced in size?

Answer 19

Numerous leaves are attached to this stem.

Question 20

What is important to note about the leaves attached to the underground stem

Answer 20

Each leaf is swollen with stored food.

Question 21

In a bulb, what does the centre of the bulb contain?

Answer 21

The centre of the bulb has an apical bud, which can produce leaves and a young flower.

Question 22

Where are lateral buds found in a bulb?

Answer 22

Lateral buds are located between the stem and each leaf.

Question 23

What can the lateral buds in a bulb do, come spring time?

Answer 23

These buds can each form a new shoot in spring.

Question 24

What happens to the old leaves of the bulb? What do they do as a result of this?

Answer 24

The old leaves become dry and scaly and serve to protect the new bulb(s) inside.

Question 25

Give 3 examples of plants with bulbs

Answer 25

Examples of plants with bulbs include onion, daffodil and tulip