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Seed Dispersal, :, Screenshot 2021-03-16 at 9.33.13 AM, Screenshot 2021-03…
Seed Dispersal
Agents that help in seed dispersal – Tavanya
Wind - Seeds that are light in weight are usually carried away by wind. Their seeds are also called "winged seeds". Some examples are dandelions and swan plants.
Water - In coastal areas, heavy fruits such as coconut fall into the sea and travel long distances and reach to other coastal areas and hence, they produce more plants there.
Animals - They eat the fruits and then they dung which has seeds which then starts growing. Seed dispersal also happens when seeds get attached to animal's fur and after sometime those seeds fall on the ground and start growing.
Gravity - When large fruits are ripe they fall on the ground from the parent plant. Some seeds are taken by parents plant and some are eaten by animals. Sometimes, they roll away because of their tough outer shell. Some examples are apples and coconuts.
Ballistic - It occurs when a fruit explodes because of the turgor pressure in the plant and the seeds fall 100 meters away from the mother plant. An example is Euphorbia heterophylla.
Summary of article on newslea. ~mia.
Every seed has some way of travelling, whether they travel a small distance or a large distance. They travel because they must find good soil and plenty of space so that they can develop into strong, healthy plants.
Some seeds travel by mini parachutes. some examples are:
dandelions, cattails, milkweeds, thistles and asters.
There are also some fruits that scatter their seeds by exploding. The pod holding the
seeds bursts open and forcibly shoots the seeds in all directions.
Humans also find uses for seeds. Grain seeds such as corn, wheat, barley etc.,
are many peoples everyday food. We also get valuable oil from coconuts, cottonseed, flour, flaxseed, etc.
What is seed dispersal and why is it important ? - Krishiv
What is seed dispersal? Seed dispersal is a process, during plant reproduction, used by all seed-bearing plants. It is an adaptive mechanism, involving the transportation or movement of seeds away from the parent plant, to ensure the germination and survival of the plant, and to prevent competition between the parent and child plant for vital resources.
Why is seed dispersal important? It is important because, if plants of the same species grow too close to each other, then they start competing for resources like sunlight and water. Seed dispersal allows the plants to spread out and prevents competition for resources between parent and child plant. Seed dispersal also allows plants to spread their species into
How seed dispersal happens with examples
~ Gauri
Biotic factors
Animals
When a bird eats a juicy fruit, the fruit’s seed never gets digested, and it is thrown away directly and is germinated away from the mother plant.
Abiotic factors
Water
Fruits like lotus and coconut that float on water are carried by water to different islands. Coconut can travel for more thousands of kilometers.
wind
Seeds like Dandelion have parachute-like structure and lightweight that they quickly get transfer to distant places through the wind.
explosion
Plants like broom and peace contain seeds and burst on their own. The pods dry and slips open suddenly with a lot of force that throws the seeds at a distance.
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