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六十年代以来,我国东北地区流行着一种对于甜菜生产危害较重的病害。该病害的主要症状是:植株生长极度矮化,块根很小,主侧根尖多有褐变;也有的块根正常,叶丛矮小,叶片黄绿,内卷并出现黑斑,继而叶片枯萎死亡。这种病害的发生原因,多年来学术界一直存在着不同的见解。笔者于1983—84年在黑龙江省的肇东县进行定点观察,并对黑龙江省的肇东、双城、讷河、安达和泰来等县及吉林省的扶余县进行了调查。本文试图通过试验和观察结果,阐述这种病害的成因。
Since the 1960s, a disease that is more harmful to beet production has become popular in the northeast of our country. The main symptoms of the disease are: the plant growth is extremely dwarfed, the root is very small, the main side of the root tip more brown; some roots are normal, short leaves, leaves yellow and green, curled up and appear dark spots, and leaves withered death. The reason for the occurrence of this disease has been that different opinions have always existed in academia over the years. In 1983-84, the author conducted a fixed-point observation in Zhaodong County, Heilongjiang Province, and investigated Zhaodong, Shuangcheng, Nehe, Anda and Tailai counties in Heilongjiang Province and Fuyu County in Jilin Province. This article attempts to explain the causes of this disease through experiments and observations.