When will the latest lettuce be introduced into China?
Lettuce is a common name for leaf lettuce, also known as goose lettuce, lettuce, shipping lettuce, etc., is an annual or biennial herbaceous crop of Compositae lettuce, according to the growth form of leaves can be divided into heading lettuce, wrinkled leaf lettuce and upright lettuce, nutritious, can be eaten raw, crisp and refreshing, slightly sweet, let's take a look at when lettuce was introduced into China!
When will lettuce be introduced into China?
Lettuce originated from the Euro-Mediterranean coast and was domesticated from wild species. The ancient Greeks and Romans ate it first, and it was introduced into China in the late Qing Dynasty. It was widely cultivated along the southeast coast of China, especially in the suburbs of big cities and Guangdong and Guangzhou. In recent years, with the rapid expansion of the cultivated area, it has gradually entered the dining table of ordinary people from hotels and restaurants.
Is lettuce genetically modified vegetables?
Lettuce is not a genetically modified vegetable. At present, in addition to large-scale imports of GM soybeans and corn, other GM vegetables are not common. Although genetically modified tomatoes and other genetically modified vegetables have been approved in China, they have been basically eliminated around the world because of their thick skin and poor taste.
What is the edible value of lettuce?
Lettuce is rich in nutrition, containing a lot of β-carotene, antioxidants, vitamin B1, B6, vitamin E, vitamin C, as well as a large number of dietary cellulose and trace elements such as magnesium, phosphorus, calcium and a small amount of iron, copper and zinc. it can enhance the digestion and absorption of protein and fat, improve gastrointestinal blood circulation, protect the liver, promote bile formation, prevent cholestasis, and effectively prevent cholelithiasis and cholecystitis. In addition, lettuce can remove rubbish in the blood and has the effect of blood disinfection and diuresis.
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When will the latest leek be sown?
Leek belongs to the perennial root vegetable of Liliaceae, which is highly adaptable, cold-resistant and heat-resistant. It is cultivated everywhere in our country, and can be produced year-round in many areas in the south. Although the aboveground part of the north has withered in winter, the underground part goes into dormancy and can continue after the topsoil is thawed in spring.
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When will the latest balsam pear be introduced into China?
Balsam pear, also known as leprosy grape, cold gourd, etc., is an annual climbing plant of the genus balsam pear of Cucurbitaceae, widely cultivated in tropical to temperate regions of the world. It is widely cultivated in the north and south of China, with sweet and bitter fruit taste, main vegetables and sugar stains. Mature pulp and aril are also edible.
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