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一九六四年小麦锈病特大流行之后,由于大力推广普及抗锈良种,使条锈病在近十年内没有形成大的流行。但是一九七五年却一反常态,条锈发生早,流行范围广,为害严重,部分地区已达到大流行的强度。为了及时摸清这次条锈病流行中各品种抗锈性的变异动态,我所对陇南地区作了调查。陇南渭河流域四月上中旬,首先在山区发现条锈病,五月上中旬由山向川蔓延扩展,五月下旬全面流行,以渭河以南高寒阴湿山区发病最重,浅山及川坝次之。导致条锈病流行的原
In 1964, after the pandemic of wheat rust, stripe rust was not widely prevalent in the recent ten years due to the vigorous promotion and popularization of anti-rust seeds. However, in 1975, it was an uncharacteristic one. Strip rust occurred earlier, with a wide range of epidemic and serious devastation. The intensity of the pandemic has already been reached in some areas. In order to find out the stripe rust epidemic in all varieties of the dynamic variation of rust, I made a survey of Longnan region. Longnan Weihe River basin in mid-April, the first in the mountainous area found stripe rust spread in mid-May from the mountain to the spread of Sichuan, the full epidemic in late May, the Weihe River in the most humid mountainous areas in Shandong, Chushan and Chuanba second. The original cause of the stripe rust