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水稻裂叶矮缩病(简称裂矮病),是菲律宾国际水稻研究所一九七七年发现的一种新的水稻病毒病害,曾在东南亚国家局部地区发生蔓延。我所一九七九年八月在品种试验田调查病害时,发现四株株形矮缩、叶尖捻卷和叶缘破裂的畸形稻株。并在温室苗圃上查到同样的稻株。这些稻株的症状与国外有关报导和一九七九年夏季我们在福建农学院水稻病毒圃所见的病株相同。据此,我们进行了田间和盆栽病苗的系统观察、病毒生物学测定和大田病害调查研究。结果证明,本地发现的这种病害与国外描述的水稻裂叶矮缩病,具有完全相同的病状和传毒特性。
Rice cracked leaf dwarf (referred to as split dwarf disease), is the Philippines International Rice Research Institute discovered in 1977 a new rice virus disease, had spread in some parts of Southeast Asian countries. In August 1979, when I investigated the disease in a variety of experimental plots, I found four deformities of rice plants with plant-shaped dwarfing, leaf-tip twisting and leaf-edge rupture. And in the greenhouse nursery found the same rice plants. The symptoms of these rice plants are the same as those reported in foreign countries and the ones we saw in the rice virus nursery of Fujian Agricultural College in the summer of 1979. Accordingly, we conducted systematic observation of field and potted seedlings, virus biology and field disease investigation. The results demonstrate that the locally found disease has exactly the same pathological and infectious characteristics as the rice leaf-splitting dwarf disease described abroad.