Seeds Dispersal Mechanisms

Seeds Dispersal Mechanisms
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An essay on seed dispersal mechanisms barochory, anemochory, hydrochory and zoochory.

Seed dispersal is defined as the physical transport of seeds from the originating plant. Because plants are immobile, seed dispersal is one solution for plants to explore new environments. Several seed dispersal mechanisms have evolved in flowering plants, namely barochory, anemochory, hydrochory and zoochory.

In barochory, flowering plants like coconuts simply use gravity to disperse they seeds. The ripe coconut fruit becomes simply heavy enough to drop from the top of the tree. Because coconut trees are very tall plants, their seeds have evolved a very hard shell to sustain the strong impact with the ground.

In anemochory, flowering plants use wind to disperse their seeds. Dandelions, for instance, have evolved feather-like structures on top of the seed to facilitate its dispersal by wind, over extremely long distances.

In hydrochory, flowering plants use water to disperse they seeds. Some plants have developed seeds with hallow structure inside to help seed float on water currents. Examples of plants that use hydrochory include water lily and palm trees.

In zoochory, seeds are dispersed by animals. Plants have evolved nutritive fruit shells to their seeds to attract animals to ingest and disperse them. Apple and pear trees use, among other mechanisms, zoochory to disperse their seeds.

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