| 东北春麦区小麦白粉病流行预测式的构建 |
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| 引用本文： | 姚平,邓长河.东北春麦区小麦白粉病流行预测式的构建[J].沈阳农业大学学报,1997,28(4):259-262. |
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| 作者姓名： | 姚平 邓长河 |
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| 摘 要： | 对15年的小麦白粉病病情和历史气象资料进行多元线性回归和多元逐步回归，得出了东北春麦区小麦白粉病中期预测的预测式，小麦白粉病的始发地为5月中旬中雨日期十5～7d；小麦白粉病发病程度Y=1．690554 0．01763625x1 0．09117417X2；小麦白粉病流行速率r=0.00089X3 0．0026X4 0．125 0．029，历史拟合率达86．67％。
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| 关 键 词： | 东北春麦区 白粉病 中期预测式 |
Forecasting Model Establishment for Powdery Mildews of Wheat in Northeast Spring Wheat Region |
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| Yao Ping, Mao Guojie, Yang Jiashu et al..Forecasting Model Establishment for Powdery Mildews of Wheat in Northeast Spring Wheat Region[J].Journal of Shenyang Agricultural University,1997,28(4):259-262. |
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| Authors: | Yao Ping Mao Guojie Yang Jiashu |
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| Abstract: | According to 15 year's weather data and disease levels of wheat powdery mildew in northeastChina, and with poly-regressive and gradually regressive methods, a mid-longterm epidemic forecastingmodel for wheat povdery mildew mildew was established . Disease set data=from the mid-May rainday on 5 ~ 7 days; y(disease severity) = 1 .690554 0.01763625X1 0.09117417X; r(epidenic rate) = 0.00089X3 0.0026X4 0. 1250.029. The meeting ratio is about 86.67 percent. |
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| Keywords: | northeast China wheat powdery mildew mid-longterm forecasting model |
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