| 玉米丝黑穗病菌（Sphacelotheca reiliana）冬孢子生物学特性的研究Ⅱ |
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| 引用本文： | 李兴红,康绍兰,李金云,张国保,马跃辉,韩福才,陈柏柱.玉米丝黑穗病菌（Sphacelotheca reiliana）冬孢子生物学特性的研究Ⅱ[J].河北农业大学学报,1995(1). |
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| 作者姓名： | 李兴红 康绍兰 李金云 张国保 马跃辉 韩福才 陈柏柱 |
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| 作者单位： | 河北农业大学植保系，河北省植保总站，承德地区植保站 |
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| 摘 要： | 本试验明确了玉米丝黑穗病菌的冬孢子在中性或偏酸性的条件下有利于冬孢子萌发，ｐＨ＝３．ｐＨ＝５和ｐＨ＝７的冬孢子最高萌发率分别为３３．２％，４８．８％和３７．２％；黑暗促进冬孢子萌发，连续黑暗处理４８ｈ和７２ｈ的冬孢子萌发率分别为２８．４％和２７．２％；而连续光照处理４８ｈ和７２ｈ的冬孢子萌发率仅为１３．２％和１１．８％；冬孢子萌发适温为２５℃左右，其萌发率为３２．０６％；冬孢子在６０℃热水中处理１０ｍｉｎ即丧失萌发力；氧气促进冬孢子萌发。
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| 关 键 词： | 丝黑穗病 冬孢子 玉米 |
Studies on the Biological Characteristics of Teliospores of Sphacelotheca reiliana (Ⅱ) |
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| Li Xinghong,Kang Shaolan,Li Jinyun.Studies on the Biological Characteristics of Teliospores of Sphacelotheca reiliana (Ⅱ)[J].Journal of Agricultural University of Hebei,1995(1). |
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| Authors: | Li Xinghong Kang Shaolan Li Jinyun |
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| Abstract: | The research showed that the higher germination rates of teliospores of Sphacelotheca reiliana were obtained when teloispores cultured in neutral or acidic condition,the highest germination rates reaching 33.2%,44.8% and 37.2 %,respectively when teliospores cultured at pH=3.5,and pH=7.The germination rates of teliospores were prominently enhanced by continuously dark light,the germination rates reaching 28. 4% and 27.2%,respectively when teliospores were exposed to dark light for 48 hours and 72 hours. On the contrary,the germination rates of teliospores were only 13.2% and 11.8%,respectively when teloispores were exposed to light for 48 hours and 72 hours.The optimal germination temperature was about 25℃.Teliospores failed to be germinated when teliospores treated with 60℃water for 10 minutes.The germination rates of teloispores were enhanced by oxygen. |
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| Keywords: | Sphacelotheca reiliana teliospore maize |
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