The secret of the plant kingdom

There are many wonders in the world, and even the little plant kingdom has many little-known secrets. Today, there are several plant friends who want to tell you about their own secrets.

Want to know why the sunflower flower is always facing the sun? This is because the sun heats the tubular florets in the sunflower disk, and the fibers at the base of the tubular florets contract. This contraction allows the disk to actively switch direction to receive sunlight. Therefore, sunflowers can also be called "hot". sunflower"

Why is radish hollow in spring? Because radishes are usually harvested before and after the frost, it is very hydrated. In winter, the radish is in a "dormant" state, and the internal moisture is not easily lost. Some organic substances are also converted into sugar. Therefore, the radish in winter feels sweet and crisp. However, as soon as the spring season, the temperature gradually rises, the radish is in the "active" period, and the water in the radish stems is largely evaporated. As a result, the meat quality of the radish becomes loose and cotton-like, which is what people often say. .

Everyone knows the morning glory? But do you know why morning glory is open in the morning? That's because the morning air is moist and the sun is soft, which is the most suitable temperature for morning glory. At this time, the upper epidermal cells of the petunia petal grow faster than the epidermal cells, and the petals are bent outward, so that the flowers are opened. At noon, the sun is strong, the air is dry, and the delicate morning glory flowers are dying because of the lack of water.

Strawberries are delicious, but do you know why you should grow bees while planting strawberries in the greenhouse? This is because strawberries are grown outside the greenhouse, and when the strawberries are blooming, there are always many bees collecting honey. Therefore, after planting strawberries in the greenhouse, put a box of bees and use honey to pollinate to help the strawberry results, thus increasing the yield of strawberries.

how about it? Are these plants magical? Not only are these plants secret, but there are many plants in nature that have secrets. Are you waiting to find out?

Second grade of Dabei Street, Nanchong City, Sichuan Province: Luo Yufeng