| 马唐病原真菌的分离筛选及其致病力测定 |
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| 引用本文： | 朱云枝,强胜.马唐病原真菌的分离筛选及其致病力测定[J].中国生物防治,2004,20(3):206-210. |
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| 作者姓名： | 朱云枝 强胜 |
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| 作者单位： | 南京农业大学杂草研究室,南京,210095 |
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| 基金项目： | 国家 8 6 3项目 (2 0 0 1AA2 4 6 0 12 )，国家自然科学基金 (30 170 6 19)，高校博士点基金 (2 0 0 0 0 30 70 8)，江苏省自然科学基金 (BK2 0 0 10 6 6 ) |
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| 摘 要： | 从马唐罹病植株上分离到 6种病原真菌 :中隔弯孢、新月弯孢、多节长蠕孢、灰梨孢、链格孢和粉红镰孢。其中新月弯孢和多节长蠕孢对玉米有致病作用 ,灰梨孢对水稻有轻微的致病作用 ;另3种病原真菌中 ,链格孢和粉红镰孢对马唐致病性弱 ,而中隔弯孢菌株对 4叶期以下的马唐有极强的致病作用 ,室内控制效果可达 1 0 0 % ,田间控制可达 75%以上。对中隔弯孢菌株QZ 2 0 0寄主范围测定表明 :该菌对水稻、玉米、大豆、棉花、小麦、向日葵、花生等作物及黑麦草、高羊茅和狗牙根等草坪草十分安全 ,具有开发为作物田和草坪真菌除草剂的潜力
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| 关 键 词： | 中隔弯孢 真菌除草剂 马唐 致病性 寄主范围 |
| 文章编号： | 1005-9261(2004)03-0206-05 |
| 修稿时间： | 2003年7月11日 |
Isolation and Pathogenicity of Indigenous Fungi to Digitaria sanguinalis |
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| ZHU Yun-zhi,QIANG Sheng.Isolation and Pathogenicity of Indigenous Fungi to Digitaria sanguinalis[J].Chinese Journal of Biological Control,2004,20(3):206-210. |
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| Authors: | ZHU Yun-zhi QIANG Sheng |
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| Abstract: | Six pathogenic fungi were isolated from naturally infected plant of Digitaria sanguinalis. They were identified as Curvularia intermedia, C. lunata, Helminthosporium nodulosum, Piricularia grisea, Altarnaria alternata and Fusarium roseum. Among them, C. lunata and H. nodulosum infected corn and P. grisea infected rice slightly. Under the condition of 48h dew period, A. alternata and F. roseum did not cause death of D. sanguinalis seedlings at the 1-3 leaf stage, but C. intermedia provided good control (90%-100% in greenhouse and 75% in field) of the weed at the 1-3.5 leaf stage. Initial host range test were done with C. intermedia. The pathogen did not infect rice, corn, soybean, cotton, wheat, sunflower, peanut, and lawn. C. intermedia may be a potential agent as bioherbicide to control crabgrass. |
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| Keywords: | Curvularia intermedia bioherbicide Digitaria sanguinalis pathogenicity indigenous fungi host range |
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