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应用生态学报 ›› 1998, Vol. 9 ›› Issue (6): 608-612.

• 研究论文 • 上一篇    下一篇

小麦品种间感染纹枯病的差异及普遍率与严重度的关系

檀根甲1, 丁克坚1, 张成林1, 沈常青1, 陈莉1, 赵红2, 靳曼华2   

  1. 1. 安徽农业大学植保系, 合肥230036;
    2. 安徽阜阳市农业科学研究所, 阜阳246000
  • 收稿日期:1997-11-18 修回日期:1998-02-09 出版日期:1998-11-25 发布日期:1998-11-25
  • 基金资助:

    安徽省教委自然科学研究项目;安徽省“九五”科技攻关资助项目(96110023)

Infection difference of wheat varieties to Rhizoctonia cerealis and relationship between incidence and severity

Tan Genjia1, Ding Kejian1, Zhang Chenglin1, Shen Changqing1, Chen Li1   

  1. Anhui Agricultural University, Hefei 230036
  • Received:1997-11-18 Revised:1998-02-09 Online:1998-11-25 Published:1998-11-25

摘要: 通过人工接菌方法比较了6个小麦主栽品种间感染纹枯病的差异,结果表明,高感类型有阜阳861、温麦4号和皖麦19, 中感类型有扬麦158、豫麦18和豫麦21.各品种苗期病株率反映不出品种感病程度的差异,以灌浆后期的病情指数为标准比较品种间抗感染程度较为适宜。认为寄主生育阶段影响小麦纹枯病的I-S关系。回归分析表明,按内茎和外茎发病程度分级可减少田间调查误差,且省时省工。

关键词: 小麦纹枯病, 品种, 感病差异, 潮汐, 植被带, 河口湿地, 活性硅酸盐, 生物硅

Abstract: By means of artificial inoculation, the infection difference of 6 wheat varieties to wheat sharp eyespot disease (Rhizoctonia cerealis )was compared.The disease incidence of varieties at their seedling stage could not reflect the difference of infection among them, and it was available to use disease index to compare the infection difference at their late milking stage.It was considered that the growth stage of host affected the relationship between incidence and severity.The regression analysis shows that the classification based on disease index in internal and external stems could decrease the errors of field investigation, and save time and manpower.

Key words: Rhizoctonia cerealis, Variety, Difference of infection, tide, biogenic silica, dissolved silicate, vegetation zone, estuarine wetland