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Maybe it's in adolescence and more rebellious! Hehe.
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Those sunflowers that do not turn towards the sun are because their flower disc has bloomed and the sunflower has stopped growing. If you take a closer look at the sunflowers, which do not turn towards the sun, you will notice an interesting phenomenon: their flower discs are fixed towards the east!
Why do sunflowers stop growing and fix their flower discs facing east? Because this may be the result of natural selection, there is a reproduction of sunflowers.
Benefit. The pollen of sunflowers is afraid of high temperatures, and if the temperature is higher than 30 degrees Celsius, it will be burned, so it is fixed in orientation.
East, which can avoid direct sunlight at noon and reduce the amount of radiation. However, early in the morning, the sun's rays help to dry the dew that condenses at night, reducing the likelihood of mold infestation, and on cold mornings, the sun's sunflower trays become warm nests that attract insects to stay there to help pollinate.
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Sunflowers rotate with the sun because of the auxin underneath the flower disc, which promotes the growth and reproduction of the plant. There is also the restriction of sunlight, and the stem will drag its flower disc and bend towards the side with the sun. When there is sunlight, sunflowers will rotate with the sun.
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Sunflowers don't always follow the direction of the sun, because sunflowers only rotate when there is sun, and this phenomenon only exists in the budding stage, because sunlight can promote the growth, development and reproduction of sunflowers, and when the sunflower flowers are fully blooming and fruitful, the sunflowers are basically stable.
Sunflowers don't always follow the direction of the sun, because when there is sunlight, sunflowers will follow the sun, and after the sun goes down, the auxin of the sunflower will be redistributed and turned back to its original position.
Secondly, sunflowers only rotate with the sun when they are in the budding stage, because sunlight can promote the growth, development and reproduction of sunflowers, and when sunflowers are exposed to the sun, the rhizomes under the flower disc will drag the flower disc to bend to the side with the sun.
According to scientific research results, when the sunflower is fully open and fruitful, the sunflower is basically stable.
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There are thousands of kinds of flowers in the world, colorful and dazzling, others like lilies and roses, but the flower I like is sunflowers. However, sunflowers also have their beauty. Sunflower, it's bright, it's bright, it's beautiful, it's passionate, it's full, it's stubborn, it's tenacious.
Its beauty can be found in these.
Some people think that sunflowers are very ordinary and ordinary. But often its beauty lies in its ordinary, ordinary. The flowers that bloom towards the sun are like the sun, and the color is already full of the smell of sunshine.
So it doesn't matter if it's cloudy or rainy, don't look up, and know that you're shining. I have seen sunflowers since I was a child, the leaves of sunflowers are green, and then look at its eyes-like melon traces and Xiangzi, really like black pearls, bees fly freely in the sky, as if greeting sunflowers, they are so enthusiastic! Some melon seeds are all grown, the disc bows its head, as if it can't raise its head shyly, rows of sunflowers are like little giants protecting the grass in the sun, sunflowers are also called sunflowers, because the disc of sunflowers always goes to the sun, sunflowers are like the younger brother of the sun revolves around the sun every day, so they have a good name of "sunflowers".
And it also has a nickname "Sunflower".The sunflower is like a mother, the sun is like a child, the mother is always defined by the child, once the mother loses that center, it loses the purpose and direction of rotation. So we have to work hard to do a good job of that center, so that the mother will not be disappointed and will not lose her way.
I found a well-founded answer to the question of why sunflowers turn towards the sun. The phenomenon of sunflowers following the sun proves the phototropism of plants. Most plants are characterized by phototropic growth.
Phototropism puts the stems and leaves of plants in the most suitable position for the use of light energy, which allows plants to receive sufficient sunlight and thus better photosynthesis.
These sunflowers all greet the sunrise every day! In fact, although the sunflower is small, it hides a strong love for the sun.
This is because the flowers of sunflowers always open towards the sun. The sunflower flower plate is always facing the sun.
In fact, many people have always had a question, why does the sunflower's flower plate keep rotating against the sun, is it because it has a mind?
There are as many as 26 species of sunflowers, the main ones are: >>>More
Sunflower is a 1-year-old herbaceous plant.