| 小麦白粉病反应型和产孢量的关系 |
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| 引用本文： | 朱秋菊,赵美琦.小麦白粉病反应型和产孢量的关系[J].植物保护学报,2002,29(1):47-50. |
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| 作者姓名： | 朱秋菊 赵美琦 |
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| 作者单位： | 中国农业大学植物保护学院,北京,100094 |
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| 基金项目： | 国家自然科学基金(39730320)，国家“九五”攻关项目(96-005-01-02-06)资助 |
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| 摘 要： | 利用小麦的6个品种及小麦白粉菌的3个小种研究了小麦苗期白粉病反应型与产孢量之间的关系。分别用累积单斑产孢量(LBSY)、累积单位面积产孢量(LASY)与反应型组建了反应型-产孢量关系模型:Y_1=exp(1.7178×lnX 0.0256X-2.484)(LBSY法);Y_2=exp(1.5168×lnX 0.052X-2.309)(LASY法)(X为反应型,Y为产孢系数)。通过LBSY方法获得反应型0,1,2,3~-,3,3~ ,4~-,4所对应的产孢系数分别为0,0.09,0.29,0.49,0.60,0.71,0.96,1。
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| 关 键 词： | 小麦白粉病 反应型 产孢量 |
The relationship between infection type and spore yield of wheat powdery mildew |
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| Zhu Qiuju and Zhao Meiqi.The relationship between infection type and spore yield of wheat powdery mildew[J].Acta Phytophylacica Sinica,2002,29(1):47-50. |
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| Authors: | Zhu Qiuju and Zhao Meiqi |
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| Institution: | College of Plant Protection, China Agricultural University, Beijing 100094 and College of Plant Protection, China Agricultural University, Beijing 100094 |
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| Abstract: | The relationship between infection type and spore yield was investigated in the greenhouse. Accumulative spore yield per lesion and accumulative spore yield per area were measured on diseased leaves of the different infection types. The models of relationships between infection type (X) and accumulative spore yield per lesion (Y1) or accumulative spore yield per area (Y2) were constructed, respectively: Y1=exp(1.7178×lnX+0.0256X-2.484) (R2=0.98); Y2=exp (1.5168×lnX+0.052X-2.309) (R2=0.98). The spore yield coefficients are 0,0.09, 0.29, 0.49, 0.60, 0.71, 0.96 and 1 by calculation of Y1, model when infection types are 0,1, 2, 3-, 3, 3+, 4-, 4, respectively. |
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| Keywords: | wheat powdery mildew infection type spore yield |
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