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三种草坪草的种带与土传真菌及杀菌剂拌种的防效
引用本文:张成霞,南志标,李春杰,王彦荣.三种草坪草的种带与土传真菌及杀菌剂拌种的防效[J].生态学报,2004,24(3):495-502.
作者姓名:张成霞  南志标  李春杰  王彦荣
作者单位:兰州大学草地农业科技学院,甘肃草原生态研究所,甘肃,兰州,730020
基金项目:国家 8 6 3计划资助项目 ( 2 0 0 1 AA2 4 40 81 )~~
摘    要:以多年生黑麦草(Lolium perenne)、高羊茅(Festuca arundinacea)和草地早熟禾(Poa pratensis)等3种9个草坪草品种为材料,在实验室、温室和田间开展了系列研究.实验室结果表明高羊茅Barlexas品种和草地早熟禾的3个品种,在滤纸苗床发芽率显著高于同样条件下田间土床上的发芽率(P<0.05).对种带和土传真菌的分离表明,自种子上仅分离获得4种常见种带真菌,而经在田间土壤培养后,分离获得14种真菌,包括早熟禾德氏霉(Drechslera poae)、立枯丝核菌(Rhizoctonia solani)和数种镰刀菌(Fusarium spp.)等.以福美双、甲基硫菌灵和三唑酮对参试品种单独拌种进行温室盆栽试验,播后13~16d,福美双显著提高了多年生黑麦草品种Premier和草地早熟禾品种Platini的出苗率,增幅最高分别为80.6%和45.2%.与对照比,三唑酮拌种显著提高了高羊茅3个品种的出苗率,增幅最高的是Barlexas品种,可达166.7%.福美双、甲基硫菌灵或三唑酮均可提高多年生黑麦草Taya每盆根和茎干重,与对照比,每盆茎干重分别增加47.2%、29.5%和34.7%,福美双和甲基硫菌灵使其根干重分别增加67.7%和97.1%.福美双和三唑酮显著提高了多年生黑麦草Gator Ⅱ每盆茎干重,增幅分别为32.1%和29.6%.甲基硫菌灵拌种使草地早熟禾Platini品种的根与茎干重分别增加230%和100%,参试品种每株幼苗根与茎干重对杀菌剂拌种的反应与每盆重量相似.田间试验结果表明杀菌剂拌种不同程度地提高了草坪草出苗率和田间生物量.经相关与回归分析,参试草坪草在田间与温室盆栽条件下的生物量存在显著的正相关,二者根和茎的相关系数分别为0.81和0.82,回归方程式分别为Y1=13.178+3.5911X1和Y2=0.11803+3.6845X2表示.

关 键 词:杀菌剂拌种  病害防治  种传病害  土传病害  多年生黑麦草  高羊茅  草地早熟禾
文章编号:1000-0933(2004)03-0495-08
收稿时间:2003/9/23 0:00:00
修稿时间:2003/12/28 0:00:00

Seed-and soil-borne fungi of 3 turfgrass species and effects of fungicide seed treatment
ZHANG Chengxi,NAN Zhibiao,LI Chunjie and WANG Yanrong.Seed-and soil-borne fungi of 3 turfgrass species and effects of fungicide seed treatment[J].Acta Ecologica Sinica,2004,24(3):495-502.
Authors:ZHANG Chengxi  NAN Zhibiao  LI Chunjie and WANG Yanrong
Institution:College of Pastoral Agriculture Science and Technology; Lanzhou University; Gansu Grassland Ecological Research Institute; Lanzhou; China
Abstract:A series of experiments were carried out in the laboratory, glasshouse and in the field. The seeds used in the experiments included perennial ryegrass (Lolium perenne), tall fescue (Festuca arundinacea) and bluegrass (Poa pratensis), three cultivars of each species. The results obtained from the laboratory trials showed that the seed germination percentage of tall fescue variety Barlexas and of all 3 varieties of bluegrass on filter paper were significantly higher than that in petri plates containing field ...
Keywords:fungicide seed treatment  disease control  seed-borne disease  soil-borne disease  perennial ryegrass  tall fescue  bluegrass
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