当前位置: 首页 > 文章 > 我国玉米新病害顶腐病的研究初报 植物病理学报 2001,31 (2) 130-134
Position: Home > Articles > PRELIMINARY STUDIES ON CORN TOP ROT IN CHINA Acta Phytopathologica Sinica 2001,31 (2) 130-134

我国玉米新病害顶腐病的研究初报

作  者:
徐秀德;董怀玉;赵琦;姜钰;刘志恒;白金铠;吕成军
单  位:
辽宁省阜新市植保站;沈阳农业大学;辽宁省农科院植保所
关键词:
玉米顶腐病;症状;生物学特性;致病性
摘  要:
本文报道了我国玉米上的一种新病害玉米顶腐病 ,是由串珠镰孢亚粘团变种 ( Fusarium moni-liforme var.subglutinans Wr.& Reink)侵染所致。人工接种玉米后表现与田间自然发病症状一致 ,除侵染玉米外 ,尚能侵染高粱、苏丹草、谷子、小麦、水稻、珍珠粟等禾本科作物引起顶腐病 ,并可侵染狗尾草和马唐草等植物。病菌生长的适宜温度 2 5~ 30℃ ,最适为 2 8℃ ;大、小 2型分生孢子萌发适宜温度均为 2 5~ 30℃。木糖、葡萄糖、蔗糖、乳糖、半乳糖和菊糖均是病菌生长的良好碳源。适宜病菌生长的培养基为 Richard's、PDA、PSA、玉米粉和燕麦片培养基。田间发病程度因地势而异 ,低洼易涝地和园田地发病重、坡地和高岗地发病轻。
译  名:
PRELIMINARY STUDIES ON CORN TOP ROT IN CHINA
作  者:
XU Xiu de, DONG Huai yu, ZHAO Qi, JIANG Yu [WT6BZ] (Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang 110161,China) [BHDWG3,WK202,WK202W]LIU Zhi heng, BAI Jin kai [WT6BZ](Shenyang Agricultural University, Shenya
关键词:
Corn top rot;symptom;biological characteristics;pathogenicity
摘  要:
The newly occurred corn disease, top rot of corn,caused by Fusarium moniliforme var. subglutinans Wr. & Reink was studied. The pathogen could infect corn, sorghum, sudan grass, columbus grass, foxtail millet, wheat, rice, pearl millet, water grass and crabgrass. The optimum temperature for the pathogen growth in culture was 25-30℃ and was 25-30℃for germination of both microconidia and macroconidia. The fungus grew well when xylose, sucrose, lactose, galactose and inulin was used as carbon sources. Many mediums such as Richard's, PDA, PSA, cornmeal agar, and oatmeal agar were good for the pathogen growth. The incidence of disease was different under different soil conditions and more plants were infected in lowland and garden soil.

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