The introduction of foreign grape varieties should be careful

In recent years, with the adjustment of agricultural structure, more and more people who want to rely on growing grapes have become rich. In order to speed up the improvement of grape varieties, China has introduced a number of grape varieties from abroad. It should be said that the introduction of these varieties has played a significant role in improving the development level of the grape industry in China and accelerating the development of the grape industry. However, the relevant experts here remind farmers' friends that although these grape varieties introduced from abroad have many excellent characteristics, they are definitely not perfect varieties. Therefore, they must be cautious when introducing them. This kind of grape is a red earth that is loved by grape growers. It came from the distant United States. After its introduction into China in 1986, it was promoted at a very rapid pace. By the year 2002, there were more than 500,000 mu of red earth in the country, and the development speed was fast. It was in the history of grape development in China. Very rare. It should be said that this variety has many excellent characteristics, such as its large spikes, large grains, bright colors after ripening, and good storage performance, but this species also has many deficiencies. [Interview: The Secretary-General of the Chinese Association of Agriculture's Grapes Branch, No. 1 disease, is that its disease resistance is relatively poor. Its disease, whether it is a fungal disease or a physiological disease, is obviously worse than that of other species, so many places are red. Problems arise from cultivation of the earth. The second is that the Red Earth is relatively poor in cold resistance. This species requires a relatively high accumulated temperature. The frost-free period of more than 165 days in a year can only be planted. Red Earth will not mature normally after 165 days. This means that it has a choice in terms of its scope. [Interview: The third species is more sensitive to sulfur dioxide. Although it is relatively resistant to storage, it is sensitive to sulfur dioxide. Therefore, our country has many problems in storing Red Earth in many places, and it has caused certain loss. Like the Red Earth, Qiuhei is a famous variety introduced from the United States and is also a favorite among the farmers. This variety has a large fruit size, large ear size, and good storage performance. At the same time, it has strong resistance to disease. After storage, it has a sweet, sour taste and is loved by farmers. [Interview: The Secretary-General of the Chinese Association of Agriculture's Grape Branch does not have a point to pay attention to. It is not to plant a single plant because the black and black variety is very good, but it is black. The Chinese choose the color of the fruit when it is black and Not like it very much, especially when fresh fruits and black fruits are sold at a bad price, so when developing autumn and black, they must be introduced with the red earth, the red earth and the yellow color of the Italian Azerbaijan. There are both red, yellow, and black inside, so that the value of autumn and black commodities goes up. If sold alone, the price of autumn and black will not be very high, but it will be sold together with Italian and Red Earth. At that time, the prices in autumn and black will be very good. In addition, Qiuhei has a clear scope of application, it is only suitable for the development of the Loess Plateau region in northwest China. Due to the rapid development of the grape industry in China in recent years, the seedling market is still far from being standardized, and the phenomenon of speculation is also very prominent. This speculation is mainly reflected in imported varieties. Some individuals or companies often make money to make money. Some famous imported varieties will be boasted as perfect varieties. In fact, we can see from the interviews of the above experts that even the imported varieties Red Earth and Qiuhei, which are currently very popular in the market, have many shortcomings. [Interview: The Secretary-General of the Chinese Association of Agriculture's Grape Branch, Mr. Yan Wuji, must introduce the varieties to suit the local conditions. There is not a perfect variety in the world. Any variety has its own advantages and also has its own shortcomings. Therefore, we must understand when introducing the varieties. A variety of advantages and its shortcomings, we carry forward its advantages, overcome its shortcomings, so as to get good cultivation benefits. ] In short, when introducing imported grape varieties, do not believe in small advertisements. Instead, you should pay attention to contacting local administrative authorities and scientific research departments and solicit their opinions to determine the really suitable varieties.

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