Why is the lotus root basically seven or nine holes?

The nine holes around the cross section of lotus root are the most obvious, and the number is fixed, just like the index of human hand is fixed. There is no difference between different varieties of lotus root, among which seven holes are larger and two holes are smaller, which is called "seven holes and two small holes", or "seven holes and two small holes" for short, commonly known as nine holes. But sometimes 1 or two of the two small holes are not obviously developed, which is called seven holes. Understand?

That is to say, "seven-hole lotus root" is actually the number of lotus root holes seen on the lotus root section where two small holes are not obviously developed, or only seven large holes around the cross section are counted; The so-called "nine-hole lotus root" is actually the number of lotus root holes seen on the lotus root section with 7 large holes and 2 small holes obviously developed. When describing the number of lotus holes, it is also based on well-developed lotus root segments.

Regardless of the size and location of lotus root holes, there are sometimes dozens of holes visible to the naked eye on the cross section of lotus root. The so-called lotus root hole is actually the ventilation tissue of lotus root, which is connected with the lotus root whip hole, petiole hole and leaf. If the aperture is not counted, the number of channels is not less than 9, and sometimes there are dozens of holes visible to the naked eye. Because of the variety, development period and location of lotus root, the number of its meridians varies greatly.

Lotus root grows horizontally underground, and two small holes in the cross section are located in the upper center. From the position of two small holes on the cross section, we can judge the growth posture of lotus root underground. When people say the number of lotus holes, they mean these nine holes. Moreover, the "seven big and two small" nine holes are obvious on the "predecessor" of lotus root-lotus root whip.

Sometimes the pulp hole in the center of the cross section of lotus root is relatively large, with 1 or 2 ~ 3 obvious holes, so there are 10 or more obvious holes in the cross section. Intramedullary channels are usually not counted when counting the number of channels, because sometimes intramedullary channels are not obviously developed, and even if they are obvious, the diameter of intramedullary channels is generally small. Therefore, from the characteristics of lotus root itself, there is no difference between "seven-hole lotus root" and "nine-hole lotus root" when observing the cross section of the fully developed lotus root segment. All varieties of lotus roots are "7 big and 2 small" and all are "nine-hole lotus roots".

When we choose lotus roots, we should try to choose those that are shorter, thicker, with larger holes and more mature. Because cooked lotus roots are more delicious than ordinary lotus roots! One more thing to note, try not to choose lotus roots that are too bright and white in appearance, because many of them have been soaked in artificial drugs. Eating it will do great harm to the human body.