| 汉中地区小麦条锈病流行因子分析 |
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| 引用本文： | 胡小平,杨之为,李振岐,邓志勇,陈汉吾,柯长华. 汉中地区小麦条锈病流行因子分析[J]. 西北农业学报, 2000, 9(2): 36-38 |
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| 作者姓名： | 胡小平 杨之为 李振岐 邓志勇 陈汉吾 柯长华 |
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| 作者单位： | 1. 西北农业大学植物保护系,陕西杨陵,712100
2. 汉中地区农技推广中心,陕西汉中,723000 |
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| 摘 要： | 利用陕西汉中地区２４ａ（１９７４－１９９７年）的病情气象资料，采用逐步回归法分析了影响汉中小麦条锈病流行的因子，求得最优回归子集，包括秋苗菌量、春苗菌量、４月份平均温度、４月份降雨量、感病品种比例。用所得关键因子（１９７４－１９９３，共２０ａ资料）建立了多元线性回归方程，并用１９９４－１９９７年的资料检验方程的可靠程度，结果表明，方程预测的准确率为７５％。
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| 关 键 词： | 小麦 条锈病 因子分析 流行因子 |
| 收稿时间： | 2000-02-10 |
| 修稿时间： | 2000－02－10 |
Factors Analysis Affected the Epidemics of Wheat Stripe Rust in Hanzhong District Shaanxi Province |
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| HU Xiao-ping,Yang,Zhi-wei,LI Zhen-qi,DENG Zhi-yong and CHEN Han-wu. Factors Analysis Affected the Epidemics of Wheat Stripe Rust in Hanzhong District Shaanxi Province[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2000, 9(2): 36-38 |
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| Authors: | HU Xiao-ping Yang Zhi-wei LI Zhen-qi DENG Zhi-yong CHEN Han-wu |
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| Affiliation: | Department of Plant Protection, Northwestern Agricultural University, Yangling Shaanxi 712100;Department of Plant Protection, Northwestern Agricultural University, Yangling Shaanxi 712100;Department of Plant Protection, Northwestern Agricultural University, Yangling Shaanxi 712100;Hanzhong Agr technology Extention Centre, Hanzhong;Hanzhong Agr technology Extention Centre, Hanzhong;Department of Plant Protection, Northwestern Agricultural University, Yangling Shaanxi 712100 |
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| Abstract: | Factors affected wheat stripe rust epidemics were studied by using stepwise regression.Results showed that key factors affected the epidemics of wheat stripe rust are the density of pathogen in spring,the density of pathogen in autumn,the ratio of susceptible cultivar,precipitation in April and average daily temperature in April.Forecast model has been set up through using selected factors. |
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| Keywords: | Wheat Stripe rust Factors analysis |
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