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稻瘟是台湾水稻主要病害之一.近十多年来,每年第一季稻的发病面积均在10%左右.一九八一年水稻受害面积为64,406公顷,占水稻总面积的9.6%.稻农受到严重损失.众所周知,抗病品种是防治稻瘟病最为经济有效的措施.台湾的抗稻瘟育种工作虽开始较早(一九五○年),但因当局不够重视和科研部门受科学技术水平等的限制,始终未能有突破性的发展.尤其近年来,品种的审核登记出现偏重于高产而忽视品种抗病性的偏向,造成了当前台湾感病品种泛滥成灾的局面.据嘉义农业试验分所张万来报道:台湾目前推广的水稻栽培品种中,粳稻品种占90%,而台湾的
Rice blast is one of the major rice diseases in Taiwan, and the incidence of rice in the first season in each of the past decade or so is about 10%. In 1981, the area damaged by rice was 64,406 hectares, accounting for 9.6% of the total rice area. Rice farmers suffered serious losses.It is well-known that disease-resistant varieties are the most cost-effective measures for the prevention and control of rice blasts.Taiwan’s blast-resistant breeding work started earlier (1950), but the authorities did not pay enough attention and the scientific research departments were subject to science Technical limitations, etc., has never been a breakthrough.Especially in recent years, the examination and registration of varieties appear to be biased towards high yield and neglected the bias of disease resistance, resulting in the current situation of Taiwan’s susceptible species flood disaster.According to Zhang Wanlai, an experimental branch of Chiayi Agricultural Research Institute, reported that among the rice cultivars currently being popularized in Taiwan, 90% of japonica rice varieties are cultivated while Taiwan