| 小麦品种对赤霉病的慢病性研究 |
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| 引用本文： | 胡小平,刘常宏,商鸿生.小麦品种对赤霉病的慢病性研究[J].西北农业学报,2003,12(1):118-120. |
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| 作者姓名： | 胡小平 刘常宏 商鸿生 |
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| 作者单位： | 西北农林科技大学植物保护学院,陕西,杨凌,712100 |
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| 基金项目： | 国家"九五"攻关项目(96-005-01-02);陕西省科技攻关项目(97K03-G5-01). |
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| 摘 要： | 采用分生孢子悬浮液花期喷雾接种法,在大田研究了12个小麦品种对赤霉病菌的抗病性,系统记载了小麦赤霉病病穗率和发病严重度,计算病情指数并进行曲线拟合,结果表明,小麦赤霉病病情指数发展过程符合Logistic模型。计算AUDPC并进行聚类分析,结果表明,12个小麦品种对赤霉病的抗病性可分为抗病性、慢病性和感病性3种类型。其中陕229、陕213、小偃135和88(1)16-9等品种具有群体慢发抗病性。
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| 关 键 词： | 禾谷镰刀菌 小麦 赤霉病 慢发抗病性 |
| 文章编号： | 1004-1389(2003)01-0118-03 |
| 收稿时间： | 2002/8/26 0:00:00 |
| 修稿时间： | 2002年8月26日 |
Study on Dilatory Resistance to Scab in Wheat Cultivars |
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| HU Xiaoping,LIU Changhong and SHANG Hongsheng.Study on Dilatory Resistance to Scab in Wheat Cultivars[J].Acta Agriculturae Boreali-occidentalis Sinica,2003,12(1):118-120. |
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| Authors: | HU Xiaoping LIU Changhong and SHANG Hongsheng |
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| Institution: | College of Plant Protection, Northwest Sci Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;College of Plant Protection, Northwest Sci Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;College of Plant Protection, Northwest Sci Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China |
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| Abstract: | 12 wheat cultivars resistance to scab was studied in the field by spraying conidia suspension at anthesis.Incidence of wheat head blight and disease severity was recorded.Disease index was calculated and curved.Results showed that the development of disease index fitted Logistic model.Area under disease progress curve (AUDPC) of Logistic model was calculated and clustered.Results showed that 12 wheat cultivars resistance to scab can be divided into three types:resistant type,dilatory type and susceptible type.The cultivars Shaan 229,Shaan 213,Xiaoyan 135 and 88(1) 16-9 have dilatory resistance in population. |
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| Keywords: | Fusarium graminearium Sch Wheat Scab Dilatory resistance |
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