论文部分内容阅读
赤霉病是我区麦类重要病害之一,特别在4、5月份多雨、高湿的地区常常发生。据国内資料記載,該病在我国开始受到注意是在1936年,当时宣城县推广的金大二九○五小麦,因严重感染赤霉病,酿成災害?夥乓岳?赤霉病于1952、1958年,曾在我区两次流行,病穗率达30%,严重度为(?)一4級;1964年及1963、1959、1957、1954年,均为中病年,病穗率5—10%,严重度(?)—2级;其他年份发病很輕,病穗率1—2%,严重度1级。由于年度間发病迟早不定,为害程度輕重不一,因此,該病的流行規律实有探討
Fusarium head blight is one of the most important diseases of wheat in our district, especially in rainy and humid areas in April and May. According to the domestic data, the disease began to be noticed in our country in 1936, when the large-scale promotion of Xuancheng County in 2005 was caused by a serious infection of scab and causing a disaster. 1952, 1958, twice in my area, the disease panicle rate of 30%, the severity of (?) A 4; 1964 and 1963, 1959, 1957, 1954, are sick years, sick ear Rate of 5-10%, severity (?) - 2; other years the incidence is very light, disease panicle rate of 1-2%, the severity of a level. Due to the onset of the disease between the early and the late, the degree of harm varies, therefore, the prevalence of the disease is discussed