中国水稻科学

中国水稻科学

• 研究简报 • 上一篇    下一篇

根据品种感病性预测水稻条纹叶枯病的发生程度

高东明1; 秦文胜1; 龚林根2; 秦维勤2   

  1. 1 浙江省农业科学院病毒实验室，杭州310021；2 江苏省常熟市病虫测报站，江苏常熟215500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1995-10-10 发布日期:1995-10-10

The Forecast of Rice Stripe Disease with Varietal Susceptibility

Gao Dongming; Qin Wensheng; Gong Lingen; Qin Weiqin   

  • Received:1900-01-01 Revised:1900-01-01 Online:1995-10-10 Published:1995-10-10

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被引次数

3

关键词: 稻条纹叶枯病, 预测式, 感病系数

Abstract: Eight rice varieties with different resistances were inoculated with rice stripe virus and disease incidences of them were obtained. By means of statistical analyses, the disease coefficients of resistant, medium resistant, susceptible and hypersusceptible varieties are 0.25-0.45, 0.46-0.75, 0.76-1.05 and 1.06-1. 65, respectively. The forecasting formula of rice stripe disease established with the varietal disease coefficient and the number of viruliferous insects y= (a+bx)c, a and b are regression coefficient, c is disease coefficient, was obtained, and which has been used for three years in Jiangsu Province, and the forecasted values coincide with practical disease incidences.

Key words: disease coefficient, forecast formula, rice stripe disease