Page 61 - Viva ICSE Science 5 : E-book

ACTIVITY TIME

To grow potato by vegetative propagation
You Need:
A potato with several eyes on it, a knife, a pot, soil, water
What to Do:
• Take the potato and cut it into small pieces. Make sure each piece has an eye on it.
• Put each piece in the pot containing soil.
• Sprinkle some water on the soil every day to keep it moist.
After a few days, you will observe white leafy shoots growing from the potato pieces.

buds in the
leaf margin Leaves

Leaves of plants like Bryophyllum have buds at the
developing
plantlets edges. When a leaf falls on moist soil, the buds grow
into new plant.

A Bryophyllum leaf showing buds

TIME TO REVISE

Fill in the blanks.
1. The process by which seeds are scattered away from the parent plants is called _________.
2. Pods of squirting cucumber and pea spread their seeds by _________.
3. The process in which new plants are grown from the vegetative part of parent plant is
called __________.
4. Potato and ginger are __________ which grow under the ground.

5. Leaves of some plants like __________ grow when fall on moist soil.

TERMS TO KNOW

1. Reproduction: The process by which living organisms produce new individuals of their kind
2. Sexual reproduction:Two parents (male and female) involved in producing a new individual
3. Gametes: Male and female reproductive cells
4. Fertilisation: The fusion of male and female gametes

5. Zygote: A single cell produced as a result of fertilisation
6. Embryo: The multicellular structure formed as a result of division in zygote
7. Germination: The process by which a seed develops into a seedling or a young plant
8. Dispersal: The process by which the seeds are scattered away from the parent plants
9. Vegetative propagation:The development of a new plant from the vegetative part like root,
stem or leaf of a plant.

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