植物生长调节剂与杀菌剂互作对早熟禾夏季斑的防治

doi:10.11733/j.issn.1007-0435.2009.03.020

›› 2009, Vol. 17 ›› Issue (3): 371-376.DOI: 10.11733/j.issn.1007-0435.2009.03.020

植物生长调节剂与杀菌剂互作对早熟禾夏季斑的防治

么文超¹, 蒋勤军², 韩烈保¹

1. 北京林业大学草坪研究所, 北京, 100083;
2. 北京燕化永乐农药有限公司, 北京, 102488

收稿日期:2008-10-20 修回日期:2009-05-04 出版日期:2009-06-15 发布日期:2009-06-15
通讯作者: 韩烈保,E-mail:hanlb@tom.com
作者简介:么文超(1984- ),女,天津人,硕士研究生,研究方向为草坪管理,E-mail:wenchaoyao@126.com
基金资助:
国家863计划(2006AA10Z132);“十一五”国家科技支撑项目(2006BAD01A19)和(2006BAC18B04-1);北京市教育委员会学科建设与研究生培养项目资助-产学研联合培养研究生基地-北京城市生态环境建设

Synergistic Action of Plant Growth Regulators and Fungicides on Control Efficiency of Summer Patch in Kentucky Bluegrass

YAO Wen-chao¹, JIANG Qin-jun², HAN Lie-bao¹

1. Institute of Turfgrass Science, Beijing Forestry University, Beijing 100083, China;
2. Beijing Yoloo Pesticide Co., Ltd., Beijing 102488, China

Received:2008-10-20 Revised:2009-05-04 Online:2009-06-15 Published:2009-06-15

摘要/Abstract

摘要： 为测定植物生长调节剂与杀菌剂互作是否对夏季斑防治具有增效作用,于2007年8月主要测定了2种植物生长调节剂抗倒酯(Trinexapac-ethyl)、多效唑(Paclobutrazol)和3种杀菌剂绘绿(Azoxystrobin)、甲基拖布津(Thiophanate-methyl)、代森锰锌(Mancozeb)对早熟禾(Poa pratensis L.)夏季斑的防治效果。结果表明:在培养皿中,5种药剂对夏季斑的生长均具有抑制作用,抑菌效果从高到低依次是绘绿,甲基拖布津,代森锰锌,多效唑,抗倒酯;在盆栽和大田实验中,单独施用植物生长调剂对夏季斑具有一定抑制作用;与杀菌剂互作后,不但提高了对夏季斑的防治效果,而且矮化了草坪,促进了草坪根部的生长。

关键词: 夏季斑, 植物生长调剂, 互作, 发病指数

Abstract: Summer patch caused by Magnaporthe poae is a recently discovered fungi disease with great destructibility which affects the turf grass root,especially the Kentucky bluegrass.It has become one of the main turf diseases in north China.The prevention and cure of summer patch is still in a primary stage and the chemical control is the main way.The purpose of this study was to find out whether or not a synergistic action between plant growth regulators and fungicides on the control efficiency of summer patch.Study was conducted to assess the interactions among two plant growth regulators(PGRs),trinexapac-ethy and paclobutrazol,three fungicides,azoxystrobin,thiophanate-methyl,and mancozeb on Kentucky bluegrass infected by summer patch.The results show that all the five reagents were fungistatic to the Magnaporthe poae in vitro and the effectiveness as the follows: azoxystrobin > thiophanate-methyl > mancozeb> paclobutrazol > trinexapac-ethyl.In the pot and field experiment,the conclusions were similar: PGRs alone treatment had certain inhibitory effect to the summer patch.The plot treated with both PGRs and fungicides showed less disease index than the plot with PGRs or the fungicides alone.Meanwhile,the synergistic action also dwarfed the lawn and promoted the growth of grass root.

Key words: Summer Patch, Plant growth regulators(PGRs), Synergistic action, Disease index

中图分类号:

S763.15

么文超, 蒋勤军, 韩烈保. 植物生长调节剂与杀菌剂互作对早熟禾夏季斑的防治[J]. , 2009, 17(3): 371-376.

YAO Wen-chao, JIANG Qin-jun, HAN Lie-bao. Synergistic Action of Plant Growth Regulators and Fungicides on Control Efficiency of Summer Patch in Kentucky Bluegrass[J]. , 2009, 17(3): 371-376.

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植物生长调节剂与杀菌剂互作对早熟禾夏季斑的防治

Synergistic Action of Plant Growth Regulators and Fungicides on Control Efficiency of Summer Patch in Kentucky Bluegrass

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