四川棉铃病害调查研究

• 作 者: 邓先明 贺忠秀 肖建国 何庆国 曾亮华
• 机 构: 西南农业大学植保系,西南农业大学植保系,西南农业大学植保系,南部县农业局,简阳县农业局,
• 出 处: 西南农业大学学报
• 发表日期: 1987年S1期
• 关键词: 棉铃 烂铃 植物病害 调查报告 (棉铃病) 病害调查 雨日 红腐 品系 总铃数

鉴定出四川棉铃病19种,主要有4种。以铃疫病居首,发生率为37.5～42.5％,最高达78.6％;次为红腐病,发生率为22.73～25.7％,最高达72.7％;炭疽病发生率为11.0～19.2％,最高达30.7％;黑果病发生率为4.6～12.3％,最高达27.4％。5节以下病铃率为68.5～78.8％,最高达97.9％。棉铃病发生率与气象因子有关。温度偏低、雨日多、湿度大时,铃病重、烂铃多。烂铃高峰期在8月下旬至9月中、下旬。我校新育成的多抗棉花品系中,MAR034等10多个品系发病较轻。

Nineteen cotton bollworm species were identified in Sichuan Province, including 4 main types. The epidemic rate was 37.5-42.5% and the highest was 78.6%. The second was red rot, the incidence was 22.73 ~ 25.7%, the highest was 72.7%. The incidence of anthracnose was 11.0-19.2% 30.7%; the incidence of black fruit disease was 4.6 ~ 12.3%, up to 27.4%. Under 5 knots the sick bell rate is 68.5 ~ 78.8%, up to 97.9%. The incidence of cotton boll disease is related to meteorological factors. Low temperature, rainy days, humidity, heavy bell, bad bell more. Bad bell peak in late August to mid September, late. In our newly-bred multi-resistance cotton line, more than 10 strains such as MAR034 are less common.