Have you ever thought why the sunflowers always face towards the sun? What is the reason behind this? In this article we will know about why sunflowers face in the direction of the sun?
Let us tell you that the sunflower flower is more active in summer than in winter. The growth of these flowers is more in those areas, where sunlight stays for more than 6 hours.
Sunflower stays active in hot weather. In the morning, when the sun rises from the east, the direction of the flower is also in the east. Gradually, along with the direction of the Sun, their direction also changes.
Our question was, why do sunflower follows the sun? In answer to this question, scientists say that this is due to heliotropism.
However, at night, they change their direction again to the east and wait for the sun to rise the next day. This process goes on regularly. Now the question arises that what would have been heliotropism? Due to which sunflower flowers move towards the direction of the sun.
In a research conducted in the year 2016, it was found that just as there is a biological clock inside humans. In the same way, sunflower flowers also have a special type of arrangement, which is known as heliotropism. It is also called the biological clock of sunflower. It detects the sun’s rays and induces the flower to bend towards the side where the sun is.
It was also found in this research that these flowers rest at night and become active as soon as they get sunlight during the day. As the sunlight increases, so does the activity of sunflower flowers. Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun.