稻瘟病是温州市的主要病害之一,早晚稻常严重发生。我所六十年代后期以来选育推广珍汕97、珍龙13、温选青、红410、军协等品种有效地控制了稻瘟病的发生,对水稻增产起了重大作用。但是,近年来汕优6号发病逐渐严重,珍汕系统品种在温州市表现抗性丧失。1980年以来局部地区较大面积流行。为此,我 Rice blast is one of the major diseases in Wenzhou City, and the morning and evening rice often occur seriously. Since the late 1960s, the breeding and promotion of Zhenshan 97, Zhenlong 13, Wenxuanqing, Red 410 and the Military Undertakings have effectively controlled the occurrence of rice blast and played an important role in increasing the yield of rice. However, in recent years, the incidence of Shanyou 6 is gradually serious. The varieties of Zhenshan system showed resistance loss in Wenzhou City. Since 1980, large areas have become popular in some areas. For this, me