Grape beads are round and smooth with rich juice, which is known as the "treasure in fruit". Grape fruit is not only delicious, but also nutritious. According to the analysis, every 100g fruit contains 15-30% sugar, 0.5- 1.4% organic acid, 0. 15-0.9% protein and 0.3-0.5% minerals. In addition, it also contains many vitamins.
Grape has the functions of strengthening bones and muscles, treating fistula, treating joint pain, doubling strength and strengthening will in medical treatment, and is also a good medicine for treating neurasthenia and fatigue. "Eating when you are hot can quench your thirst", so grapes have always been a good tonic for the weak.
Grape is not only a good fresh food, but also an important raw material for wine making. At present, the annual output of grapes in the world is 6.5438+0.2 million tons, accounting for 23.55% of the total fruit output in the world, ranking first among all kinds of fruits. Among them, about 80% is used for brewing. France's "Brandy" and "Champagne" are rich in wine grapes. Li Shizhen, a great medical scientist in China, pointed out in Compendium of Materia Medica a long time ago that wine can "warm eyes, strengthen kidney and preserve color", and modern medicine also found that wine has the function of treating anemia. Grapes produced in arid areas of northwest China can also be dried raisins.
Grape has the characteristics of strong adaptability, early fruiting, high yield and long tree age. Generally, after two years of cultivation, the plant yield can reach 20-30 kg after three years. It is easy to grow new branches at the base of vines, which can be used to regenerate old vines. Under the excellent cultivation environment, the fruiting period of grapes is hundreds of years. 1893, a grape was found in California, USA, with an annual output of 16000 kg. At that time, this grape was 5 1 year old, but it grew vigorously. Lvda City, Liaoning Province, China has also created a high yield record of 2,000 Jin per old tree. In the first production team of Quana Kanggui Village, Kanggui Township, Luopu County, southern Xinjiang, a century-old vine with an annual output of 2,000 kg was also discovered, named "Munage". Its thickest trunk circumference is 1.3m, and the whole grape is covered with branches and leaves, with an area of176.6m2. ..
Grape has been paid attention to in fruit tree cultivation all over the world for thousands of years because of its premature birth, high yield, long life, wide use and high economic value, and it has developed rapidly and has a huge scale. At present, the world's grape planting area is about 65.438+0.5 billion mu, and the output reaches 65.438+0.2 billion tons, accounting for 23.55% of the world's total fruit output, ranking first among all fruit trees.