| 木霉与烟草赤星病菌对寄生效果的影响 |
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| 引用本文： | 方敦煌,白江兰,邓星燕,杨波,李天飞. 木霉与烟草赤星病菌对寄生效果的影响[J]. 西南大学学报(自然科学版), 2005, 27(1): 33-35 |
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| 作者姓名： | 方敦煌 白江兰 邓星燕 杨波 李天飞 |
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| 作者单位： | 云南省烟草科学研究所,云南玉溪653100 |
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| 基金项目： | 云南省"十五"攻关项目(2001 N G08)云南省烟草公司重点科研计划资助项目"新型高效生物农药控制烟草主要病虫害研究与应用示范"资助课题 |
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| 摘 要： | 当赤星病菌孢子先于木霉孢子接种时,可刺激木霉孢子萌发,寄生率明显提高;当木霉孢子先于赤屋病菌孢子接种时,木霉寄生率较高,但赤星病菌孢子萌发率明显降低;当2者同时接种时,2者的孢子萌发率及木霉的寄生率均较高。不同的木霉与烟草赤星病菌孢子配比试验表明,随着木霉与烟草赤星病菌孢子配比的增加,寄生效果明显提高,但当达到10：1后,即使配比增加,木霉的寄生率仍保持恒定。不同的木霉与烟草赤星病菌孢子配比对病害防治效果随着配比的增加,防效有所提高,当木霉与赤星病菌的孢子配比达10：1时,效果显著提高,随后防效基本稳定。
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| 关 键 词： | 接种时间 孢子配比 寄生率 病害防治效果 |
| 文章编号： | 1000-2642(2005)01-0033-03 |
| 收稿时间： | 2004-05-10 |
EFFECT OF TV -1 PARASITING ON THE PATHOGEN OF TOBACCO BRWON SPOT DISEASE BY DIFFERENT SPORE RATIO |
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| FANG Dun-huang,BAI Jiang-lan,DENG Xing-yan,YANG Bo,LI Tian-fei. EFFECT OF TV -1 PARASITING ON THE PATHOGEN OF TOBACCO BRWON SPOT DISEASE BY DIFFERENT SPORE RATIO[J]. Journal of southwest university (Natural science edition), 2005, 27(1): 33-35 |
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| Authors: | FANG Dun-huang BAI Jiang-lan DENG Xing-yan YANG Bo LI Tian-fei |
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| Abstract: | Inoculation of Altemaria alternate spores before Trichoderma sp. activated Trichoderma sporulation and the parasitic rate was raised. Inoculation of Trichoderma sp. before A. alternate, the parasitic rate of Trichoderma sp. was high while spore germination of A. alternate was markedly lowered. When the spores of both were inoculated simultaneously, their sporulation and the parasitic rate were high. The parasitic rate and control effect kept increasing with the spore ratio of Trichoderma to A. alternate until the ratio was 10:1. They remained constant thereafter. |
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| Keywords: | inoculation stage spore ratio parasitic rate disease -controlling effect |
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