论文部分内容阅读
1978年以来,在内蒙包头、呼和浩特等地发现了一种甜菜新病害。地上部表现叶片黄化、枯斑坏死、沿脉黄化坏死等症状;地下部表现次生侧根异常增生。根据鉴别寄主的症状,病株根部多粘菌(Polymyxa betae)的寄生和病毒形态及粒子长度分布特征确定内蒙所发现的这种新病害即国外报道的由Polymyxa betae传带的甜菜坏死黄脉病毒所致的甜菜丛根病。
Since 1978, a new sugar beet disease has been found in Baotou, Inner Mongolia and Hohhot. The aboveground parts showed leaf yellowing, necrosis of the necrosis and necrosis along the veins and other symptoms; the lower part showed abnormal proliferation of lateral root. According to the symptoms of the host, the parasitic and virus morphological characteristics of the Mycoplasma multimyxa (Polymyxa betae) and the distribution of the length of the particles were determined to be the new disease found in Inner Mongolia. The newly reported beet necrotic yellow vein virus Caused by beet root disease.