| 玉米褐斑病菌休眠孢子囊萌发条件研究 |
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| 引用本文： | 纪莉景,王连生,栗秋生,孔令晓,李杏爽.玉米褐斑病菌休眠孢子囊萌发条件研究[J].河北农业大学学报,2011,34(3):24-27. |
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| 作者姓名： | 纪莉景 王连生 栗秋生 孔令晓 李杏爽 |
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| 作者单位： | 河北省农林科学院植物保护研究所,河北省有害生物综合防治工程技术研究中心,河北,保定,071000 |
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| 基金项目： | 河北省财政专项(2010055006); 粮食丰产科技工程(2006BAD02A16-3) |
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| 摘 要： | 为了明确玉米褐斑病菌休眠孢子囊的萌发条件,本试验测定了不同温度、pH值、光照处理对玉米褐斑病菌休眠孢子囊萌发的影响.试验结果表明,20～35℃培养条件下玉米褐斑病菌休眠孢子囊均能萌发,适宜温度范围为26～32℃,休眠孢子囊萌发率分别为49.6%、47.5%和49.5%,适宜pH值为6～9,休眠孢子囊萌发率分别为49.3...
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| 关 键 词： | 玉米褐斑病 休眠孢子囊 温度 光照 pH值 |
Factors affecting germination of the resting sporangia of maize brown spot fungus Physoderma maydis |
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| JI Li-jing,WANG Lian-sheng,LI Qiu-sheng,KONG Ling-xiao,LI Xing-shuang.Factors affecting germination of the resting sporangia of maize brown spot fungus Physoderma maydis[J].Journal of Agricultural University of Hebei,2011,34(3):24-27. |
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| Authors: | JI Li-jing WANG Lian-sheng LI Qiu-sheng KONG Ling-xiao LI Xing-shuang |
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| Institution: | JI Li-jing,WANG Lian-sheng,LI Qiu-sheng,KONG Ling-xiao,LI Xing-shuang(Institute of Plant Protection,Hebei Academy of Agricultural and Forestry Sciences,Integrated Pest Management Center of Hebei Province,Baoding 071000,China) |
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| Abstract: | Factors affecting germination of the resting sporangia of Physoderma maydis-the pathogen of maize brown spot were studied.Results showed that temperatures from 20 ℃ to 35 ℃ were suitable for the germination of the resting sporangia,but the optimum temperatures were 26 ℃,29 ℃ and 32 ℃ with the germination rates 49.6%,47.5% and 49.5%,respectively.The favorable pH value for the resting sporangia germination was 6,7,8 and 9 with the germination rates 49.3%,49.7%,45.3% and 47.3%,respectively.Maximum germination rate was obtained when sufficient light was provided.The germination rate was 45.4% and 49.6% under 24 h light and 24 h light-dark cycle(12:12 h light-darkness),which was significantly higher than that under 24 h darkness condition.However,the light intensity during 1 300~14 000 lx had no effect on the germination of the resting sporangia.The findings can provide evidence for idendification of maize brown spot diseases. |
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| Keywords: | maize brown spot resting sporangia temperature lighting pH value |
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