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时间:2020-04-18
《大豆豆荚炭疽病有效杀菌剂的筛选与防治适期研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、浙江农业学报ActaAgricuhuraeZhejiangensis,2012,24(2):258—262http://www.zjnyxb.cn王国荣,孙志峰,陈吴健,等.大豆豆荚炭疽病有效杀菌剂的筛选与防治适期研究[J].浙江农业学报,2012,24(2):258—262.大豆豆荚炭疽病有效杀菌剂的筛选与防治适期研究王国荣,孙志峰,陈吴健,林钗,夏国绵,楼曼庆,楼兵干(浙江大学生物技术研究所,浙江杭州310029;杭州市萧山区农业技术推广中心,浙江杭州311203;。浙江出人境检验检疫局,浙江杭州311208)摘要:通过田间试验,筛选有效防治大豆豆荚炭疽病的杀菌剂
2、,并对最佳防治时期进行研究。试验比较了8种杀菌剂对大豆豆荚炭疽病的防治效果,结果表明,防治该病害的有效杀菌剂以甲基托布津为首选,其次为施佳乐和好力克等。通过比较大豆始花期、盛花期和鼓粒期的防治效果,防效最好的是在始花期;在始花期、盛花期或鼓粒期的任何两个时期连防2次的防治效果显著好于只防1次的。在始花期与盛花期连续施药2次,防效超过95%。室内接种防治试验表明:当RH低于90%时,接种鼓粒期的豆荚喷与不喷甲基托布津都不发病;当RH为100%时,接种后24h内喷甲基托布津,防效与对照不接菌无显著性差异,接种后48h喷甲基托布津,防效显著低于对照不接菌。关键词:大豆炭疽病
3、;始花期;盛花期;鼓粒期;甲基托布津中图分类号:S431.12文献标志码:A文章编号:1004—1524(2012)02—0258—05Screeningofefectivefungicidesandoptimumperiodforcontrollingsoybeanpodanthrac-noseWANGGuo.rang,,SUNZhi-feng,CHENWu-jian·,LINChai。,XIAGuo.mian,LOUMan.qin。,LOUBing—gan'(。InstituteofBiotechnology,ZhejiangUniversity,Hangzhou
4、310029,China;CentreofAgriculturalTechnologyEx—tensionHangzhouXiaoshan,Hangzhou311203,China;ZhejiangEntry—ExitInspectionandQuarintineBureau,Hangzhou311208,China)Abstract:Theeffectivefungicidesforcontrollingsoybeanpodanthracnosewerescreenedandoptimumperiodforitwerestudiedbyfieldexperiment
5、.Thecontroleffectsof8fungicidesonanthracnoseofsoybeanpodweretestedinfield.Theresultsshowedthatthiophanate-methylshouldbeusedasthefirstchoicefungicidetocontrolsoybeanpodanthracnose,thenpyrimethanilandtabuconazoleetc.Thisexperimentwasconductedtocomparethecontrolefectwithsprayingthiophanat
6、e-methylatthestageofflowerbeginning,flowerflourishandseedfiningofsoybean,respec—tively.Theoptimalcontrolgrowthstagewasthestageofflowerbeginning.Applyingfungicidetwotimesatthestageofflowerbeginning,flowerflourishorseed—fillingofsoybean,thecontroleficiencyofsoybeanpodsweresignificantlyhig
7、herthanapplyingfungicideonetimeatthesanlestage.Applyingfungicideonetimeatthestageofflowerbegin—ningandflowerflourishorseed—fillingofsoybeanrespectively,thecontroleficiencyreachedmorethan95%.Thisexperimentwasconductedtocontrolsoybeananthraenoseafterinoculationatdifferentrelative
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