摘要
在匍匐翦股颖Agrostis stolonifera草坪上利用气象数据和病害发生数据,建立褐斑病Rhizoctonia solani发生期预测模型Y=1/[1+e(5.179+0.346T-0.156RH)];褐斑病发病率预测模型x=36.057-2.65T+0.615RH;褐斑病病情指数预测模型y=26.39-1.872T+0.394RH。病情指数与发病率之间相关性显著,得出二者的线性回归模型为y=0.67x-1.303。
Based on information of meteorological and data of brown patch （Rhizoctonia solani） of Agrostis stolonifera, three models were established as follows. 1）. the model for infecting time is Y=1/[1＋e^（5.179＋0.346T-0.156RH）]; 2 ） the model for disease incidence is x = 36.057 -- 2.65 T＋ 0.615R H; 3） the model for disease index is y=26.39-1. 872Tq-0. 394RH. The disease incidence （x） was significantly correlated with the disease index （y） as the formula： y=0.67x-1. 303.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第2期71-76,共6页
Pratacultural Science
关键词
褐斑病
预测模型
气象因子
brown patch
foresting model
meteorological factor
