多在水稻上部第一节叶鞘部分或全部变深紫色或紫褐色的紫鞘病在安庆—带早、晚稻上也普遍发生。1978年开始发现时就较普遍,那时当成是品种形态特性,未予重视。近年来不少地方报导此病日趋严重,并就病原问题展开了讨论,我们自1982年晚稻开始调查和观察。 Mostly in the upper part of rice leaf sheath partial or all dark purple or purple-brown purple sheath disease in Anqing - with early and late rice is also common. When it was discovered in 1978, it became more common. At that time, it was regarded as a variety of morphological characteristics and was not valued. In recent years, quite a few localities have reported that the disease is getting worse day by day and discussions on pathogen problems have started. Since late rice investigation and observation in 1982, investigations have begun.