Studies on Sugar Beet Rhizomania in Ningxia
Abstract: A virus disease of sugar beet occurred in Ningxia showing symptoms of yellows, parch blight and necrotic yellow vein of foliage leaves. The rod shaped virus was isolated from sugar beet plants affected with rhizomania disease The virus particles had a width of about 20 nm and at lengths of 65—110nm, 270—300nm, and 390—420nm, The virus could infect Bete uulgaris L., Spinacea oleracea, Chenopodium quinoa, C. amaranticolor, Tetragonia expansa. The virus could react with BNYVV antiserum According to the above d...