Preventive measures for the degradation of Potato varieties

Potato degeneration is a common phenomenon in production, and the direct manifestation of degeneration is abnormal plant growth, small tubers, greatly reduced yield, seriously affecting the income of farmers. The main reason for potato degradation is that planting a variety all the year round causes the virus to accumulate gradually, so how to prevent potato variety degradation? Let's take a look at it together with Xiaobian.

1. Select varieties with strong disease resistance

Different potato varieties have different resistance to virus disease. Some varieties with strong resistance can be planted continuously for three years and still maintain high yield, but some varieties will have significant yield reduction after planting for two years. Therefore, it is extremely important to select varieties with strong disease resistance. At the same time, attention should be paid to selecting the seeds with comparable potato quality during planting, so as to extend the high-yield life appropriately. In addition, attention should be paid to the disinfection and sterilization of soil, which can also increase the high-yield life accordingly and delay the degradation of varieties.

2. Change varieties frequently

The best way to avoid potato variety degradation is to change varieties frequently. At this time, the most effective way to prevent variety degradation is to change varieties frequently. Many friends often suggest that they buy different varieties when buying seeds, but some friends think that they are cheating them. They think that the cost of changing seeds is worth the loss caused by production. This is a wrong idea, in the production must frequently change varieties, preferably 1-2 years to replace once.

3. Cultivate nontoxic varieties

After research, it is found that the root tip and stem tip of potato have strong ability to grow without virus, and the probability of virus infection is very low, so potato can be used for virus-free yield, and then seedlings cultivated by tissue can be used for production. Such seedlings will not carry germs, which is virus-free seedlings.

4. Control the disease

Virus infection is mainly due to poor control of disease in the field, resulting in more virus disease accumulation year by year, and the best way to reduce variety degradation is to control disease in the field. Especially for virus infection, the plants infected with virus shall be removed in time and taken out of the field to be burned or buried deeply, and then the diseased holes shall be sprayed with chemicals or lime to avoid spreading the disease. If there are signs of spread, comprehensive spraying of drugs shall be carried out for prevention and control, and the sooner the better.

The above is the introduction of preventive measures for potato variety degradation. I hope it can help you. If you want to know more about it, please pay attention to us.