| 曾琛，姜于兰，谷晓平，莫建国，向红琼.山地气候对烟草赤星病的影响研究[J].广东农业科学,2012,39(3):32-34 |
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山地气候对烟草赤星病的影响研究 |
| Study on the influence of mountain climate to tobacco brown spot |
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| DOI： |
| 中文关键词: 山地气候 烟草赤星病 气象因子 表观侵染速率 病害调查 |
| 英文关键词: mountain climate tobacco brown spot meteorological factors apparent infection rat disease survey |
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| 摘要点击次数: 1592 |
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| 中文摘要: |
| 2011 年对贵州省5个典型山地气候区烟草赤星病进行了调查。调查烤烟品种为感病品种（云烟87），共获得5 个区域田间病害发生情况数据资料。利用SPSS 软件多种增长模型对所得数据进行曲线估计，通过Sig 值、R2的比较，认为Logistic 模型能较好地拟合赤星病田间动态变化过程。分析赤星病发病因素，证明初始病情、日平均温度、日平均相对湿度尧风速及降雨量是影响赤星病发生的重要因素。利用逐步回归分析建立了烟草赤星病田间增长速率的预测模型。 |
| 英文摘要: |
| An investigation on tobacco brown spot was made in five representative mountain climate zone of Guizhou province in 2011, so the occurrence data of tobacco brown spot were got, and the flue-cured tobacco variety investigated was yunyan87 which was susceptible to tobacco brown spot. The data were tested by various growth models in SPSS software for curve estimation, and the results
suggested that the Logistic model fitted best by sig value and R2 value comparison in SPSS software. By analyzing the factors of tobacco brown spot occurrence, it indicated that the initial disease, daily mean temperature, relative humidity, wind velocity and the rainfall were
major factors affecting the occurence of this disease. The prediction model for growth rate of tobacco brown spot in field was established using stepwise regression analysis. |
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