地黄又名生地,为玄参科地黄属植物,在古医药上被列为上品,药用历史悠久,主要以根茎入药。我国栽培地黄历史至少有900余年,在我国北方大部分省区都有栽培。我省近几年发展地黄种植较快,占全国种植面积的70％左右,但地黄栽培中最大的难题是病毒病导致的种性退化严重,这很大程度影响了地黄的产量及品级。省 Rehmannia also known as habitat, Scrophulariaceae yellow genus, in the ancient medicine was classified as top grade, medicinal has a long history, mainly rhizome medicine. At least 900 years of cultivation of Rehmannia in our country have been cultivated in most of the provinces and autonomous regions in northern China. Rehmannia in recent years in our province to develop faster planting, accounting for about 70% of the national area planted, but the biggest problem in the cultivation of Rehmannia is the serious degeneration of the virus caused disease, which greatly affected the yield and quality Rehmannia. province