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Why Do Plants Turn Towards the Sunlight?

Published by Keerthana in Science
July 12th, 2008

As everyone knows plants turn towards the sunlight. Generally we see during the sunlight plants turn towards sunlight. Let us see why this is happening.

Plants need sunlight for photosynthesis, the process of producing food. Thus, when plants are kept away from the sunlight they bend or turn towards the light.

House plants kept near the window bend towards sunlight to gain as much light as possible. It has been observed that if house plants do not get sunlight they bend towards the artificial sunlight.

The movement of plant organs in response to incidence of rays of light is known as phototropism or heliotropism. Those organs which move towards the light are known to be positively heliotropic like for example the shoot of the plant. Those organs which grow away from light are said to be negatively heliotropic, for example the root.

The groundnut plant is a very interesting case in the study of heliotropism. The flower stalk is positively heliotropic and grows towards the light.

However, once the flower has been pollinated, the stalk becomes negatively heliotropic. More interestingly, it becomes geotropic, that is, it goes down into the soil. It pushes the fertilized ovary into the ground where it ripens and forms the pod.

To know more -

Compound Walls From Feng Shui Perspective

What are Plant Parasites?

Why Do Plants Turn Towards the Sun?

Why Do Some Flowers Have Bright Color

What is Photosynthesis?

Corridors From Feng Shui Perspective

Different Habits of Plants

The Largest and Smallest Flowers in the World

What is Pollination?

Different Groups in the Plant Kingdom

Different Species of Beetles

Veterinary Medicine: Care of Sick Animals

Tarantula: A Large Hairy Spider

How is Rainfall Measured



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    Posted February 25, 2009 at 7:39 pm

    THIS REAALY HELPED!!!Thanks. doing performative architectre and how *flower like structures can (TURN) towards more sunlight!

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