生菜在欧美、日本等国家早已被广泛食用，近年来我国人民生活水平的不断提高，饮食结构也发生了很大的变化，生菜及其它特菜品种逐渐走上千家万户的百姓餐桌，生菜以其鲜嫩爽口、营养含量高和保健功能强而深受各阶层消费者的喜食。因其适应性强，生育期短，是秋、冬季保护地种 Lettuce in Europe and the United States, Japan and other countries have long been widely consumed, in recent years the continuous improvement of living standards of our people, the diet has undergone great changes, lettuce and other special dishes gradually onto the table of millions of people, lettuce Its fresh and refreshing, high nutritional content and health care functions are well received by consumers of all walks of life. Because of its adaptability, short growth period, autumn and winter protected species