Why Do Leaves Turn Yellow in Autumn? – Webtekno

Trees, like some animals, It goes to rest in winter. Naturally, it is inevitable for the leaves to fade in such a situation.

What we found for you about this natural phenomenon There are several theories.

With the arrival of autumn, magical events take place in nature.

As the days get shorter, we see that winter is coming and the leaves have left their former vibrant colors aside. One of the theories about this phenomenon is that the leaves affected by chemical change.

As the sunlight decreases, Photosynthesis activities of plants also slow down. As the chlorophyll pigment decreases, the previously hidden anthocyanin pigment begins to appear in the leaves. This change causes green leaves to be replaced by shades of red, yellow and orange.

Observations of the US National Forest Service also reveal that cold nights trigger this color change by causing leaf veins to close.

In high altitude areas The fact that trees change color faster shows how this process is shaped depending on environmental factors such as temperature and humidity.

A study on the subject shows that a defense mechanism against insects lies behind the color change of the leaves. Because insects overwinter in warm tree trunks They are attracted to the amino acids in the leaves.

In autumn, these amino acids to protect the tree from insects It is said to go towards the branches and trunk. This view that we looked at with fascination actually showed an evolutionary process.

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