生菜是叶用莴苣的别名。原产于地中海沿岸,隋代传入我国。生菜是生食蔬菜,主要特色是叶片脆嫩多汁,甜中带苦,清香爽口,能促进食欲,帮助消化。除蔬食外,还可加工成菜汁饮料或制成罐头。生菜含有丰富的维生素、胡萝卜素、烟酸、叶酸和多种矿物质。 生菜属菊科莴苣属草本植物,有结球、直筒、散叶之分,紫叶、黄叶、淡黄叶之别。在国际市场上,结球生菜销路很广。许多国家采用大栅温室栽培,周年上市。在美国、日本、新加坡等国,几乎成为家庭主菜。香港、澳门多从外国运进。近年来,冀西北高寒区试种推广,深受菜农欢迎。 Lettuce is an alias of leaf lettuce. Originated in the Mediterranean coast, Sui Dynasty into our country. Lettuce is raw vegetables, the main features are succulent leaves crisp, sweet with bitter, refreshing, can promote appetite and help digestion. In addition to vegetables, but also processed into juice drinks or canned. Lettuce is rich in vitamins, carotenoids, niacin, folic acid and a variety of minerals. Lettuce Asteraceae is a herbaceous plant, a ball, straight, scattered leaves of the points, purple leaves, yellow leaves, yellow leaves of the other. In the international market, the sales of lettuce is very wide. Many countries use Dazha greenhouse cultivation, anniversary of the market. In the United States, Japan, Singapore and other countries, almost become the main course of the family. Hong Kong, Macao and more imported from foreign countries. In recent years, Hebei northwest high-cold areas to try to promote, deeply welcomed by vegetable farmers.