Potato late blight is the most fungal disease that threatens potatoes. British researchers recently developed a genetically modified potato that can not only resist this disease but also produce higher yields.
Potato late blight is caused by a pathogenic fungus that prefers a humid environment, and the leaves and roots of diseased crops will rot. In order to prevent this disease, European farmers need to spray more than 10 pesticides during the growing season of potatoes. It is estimated that this disease is still causing serious losses to global agriculture.
Researchers at institutions such as the Sainsbury Laboratory in the United Kingdom obtained a gene from a wild potato in South America and implanted it in potato varieties often planted in Europe. This gene successfully launched the potato against late blight. Natural mechanism. In addition, the yield of this genetically modified potato is higher than that of common varieties.
In August 2012, when the study was carried out in the third year, the potato in other varieties in the study site had such an outbreak, and the newly developed genetically modified potato was not infected.
Professor Jonathan Jones, who led the study, said that the genes of wild potatoes have to enter the common potatoes. It takes a very long time to evolve through natural evolution. The prevention of pests and diseases through genetic techniques is much better than using pesticides. However, due to the need for EU approval for the commercial cultivation of this genetically modified potato, European farmers may have to grow this potato for about 10 years.
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