Apple is one of the four major fruits in the world today, known as the "king of fruits", and it is an essential nutritional fruit in people's daily life. I am really proud to mention Apple's family history. It has a history of more than 2,000 years in China, and grafting is the main method. Generally speaking, apples begin to bear fruit 4-5 years after grafting, and the full fruit period is generally maintained at 15-30 years. There are about 100 varieties at present. Among the apple families, Fuji, Red Star, Jin Shuai and so on are the most common. Among them, I like Fuji best. Fuji's hometown is in Japan, and it moved to China in 1965. It is big and strong, shining, and its round face is half red and half yellow. The milky white flesh makes you crisp and delicious, and the mellow and sweet taste will make your mouth water. Let's take a look at my other friend, Red Star, which is a genuine domestic product. The biggest feature of its shape is the sharp depression of calyx, with five stare blankly on it, like a five-pointed star, and the color is red, so it is called red fruit. It smells good, smells cool and tastes cool. The sweet taste is memorable. Of course, there are many members of the Apple family, such as the famous "Huang Xiangjiao", the sweet and delicious "Crown" and the sweet and sour "Guoguang" ... The members of the Apple family have the same characteristics. They like to grow on fertile sand and enjoy the sunshine. Because the outer branches of the crown should be cut off moderately, so as to grow rapidly. It is cold-resistant and drought-resistant, and has low requirements for air humidity. It is cultivated in many provinces north of the Yangtze River in China. do you believe that？ Eating more fruits also helps to remember. It turns out that apples are rich in sugar, vitamins and minerals needed by the human body, and also contain trace element zinc. Zinc deficiency in children can lead to brain dysplasia and affect memory. No wonder people call it "the fruit of memory". Through the above introduction, you must know the "Apple family" very well!