• Many plants scatter their seeds in order to ensure that they do not grow too close to one another.
• The process by which the seeds are scattered away from the mother plant is called dispersal.
• Nature has its own way of dispersal of seeds.
The ways by which dispersal of Seeds take Place:
A. Dispersal by wind:
• Seeds of certain plants are very light and have wings or hair on them.
• These seeds are easily carried away by wind.
• dandelion, sycamore, ash, bulrush, willow herb, thistle
B. Dispersal by animals:
• Seeds of plants are scattered by animals also.
• Certain seeds have hooks, stiff hair, or spines, which help in their dispersal.
• Animals and human beings eat some fruits and throw away the seeds, which grow into new plants.
• sunflower, date, raspberry, tamarind, sea grape, sea holly, cocklebur
C. Dispersal by water:
• Seeds of the plants are scattered by water.
• Seeds of some plants are spongy or have a fibrous covering which helps them to float on water.
• Water transports these seeds from one place to another.
• yellow water lily, lotus, mangrove, water mint, coconut, sea bean
D. Dispersal by explosion:
• Fruits of certain plants burst open when they are ripe, scattering the seeds in all directions.
• This mechanism of seed dispersal is called explosion.
• viola, lathyrus, broom, poppy, pea, lupin, bean
Ans: No, all the seeds will not be able to grow into plants because of lack of space and nutrients.
Ans: The seeds which got scattered on the wet soil near coastal areas will germinate and bear fruits.
Ans: The seeds that fell on the soil will germinate.
Ans: In the Kitchen garden seeds will be able to germinate and will grow into a new plant.
Ans: The dispersal of bean and pea seeds take place by explosion. When the seeds are scattered on the soil by themselves, they can germinate into new plants.
Ans: No, the seeds will not be able to germinate as their dispersal should be done by animals.