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ID:5358515
大小:1.27 MB
页数:7页
时间:2017-12-08
《水稻施用硅肥对稻纵卷叶螟幼虫取食和成虫产卵选择性的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第37卷第5期生态学报Vol.37,No.52017年3月ACTAECOLOGICASINICAMar.,2017DOI:10.5846/stxb201510092034韩永强,弓少龙,文礼章,侯茂林.水稻施用硅肥对稻纵卷叶螟幼虫取食和成虫产卵选择性的影响.生态学报,2017,37(5):1623⁃1629.HanYQ,GongSL,WenLZ,HouML.EffectofsiliconadditiontoriceplantsonCnaphalocrocismedinalisfeedingandoviposit
2、ionpreference.ActaEcologicaSinica,2017,37(5):1623⁃1629.水稻施用硅肥对稻纵卷叶螟幼虫取食和成虫产卵选择性的影响1,2121,∗韩永强,弓少龙,文礼章,侯茂林1植物病虫害生物学国家重点实验室,中国农业科学院植物保护研究所,北京100193/南方粮油作物协同创新中心,长沙4101282湖南农业大学植物保护学院,长沙410128摘要:采用感虫水稻品种TN1,设置3种施硅水平,即高硅(0.32gSi/kg土壤)、低硅(0.16gSi/kg土壤)和不施硅对照(0gSi
3、/kg土壤),研究了施用硅肥对稻纵卷叶螟产卵和取食选择性的影响。结果表明:稻纵卷叶螟幼虫对硅处理水稻叶片的取食选择性和成虫在硅处理水稻上的着卵量、着卵率均显著低于对照水稻。高硅处理水稻叶片中的硅含量、可溶性糖含量和碳氮比高于对照,而氮含量低于对照;低硅处理水稻叶片的碳氮比高于对照、氮含量低于对照。同时,硅处理显著降低水稻的卷叶株率和卷叶率。这些结果表明,施硅能增强稻纵卷叶螟对水稻的不选择性,从而增强水稻对稻纵卷叶螟的抗性。关键词:稻纵卷叶螟;水稻;硅;产卵选择;取食行为Effectofsiliconadditi
4、ontoriceplantsonCnaphalocrocismedinalisfeedingandovipositionpreference1,2121,∗HANYongqiang,GONGShaolong,WENLizhang,HOUMaolin1StateKeyLaboratoryofPlantDiseasesandInsectPests,InstituteofPlantProtection,ChineseAcademyofSciences,Beijing100193,China/SouthernRegio
5、nalCollaborativeInnovationCenterforGrainandOilCropsinChina,Changsha410128,China2CollegeofPlantProtection,HunanAgriculturalUniversity,Changsha410128,ChinaAbstract:Riceisasilicon(Si)⁃accumulatingplantspecies.Itisestimatedthataricecropproducing1,000kgyieldwillr
6、emove130kgSifromthesoil,twiceasmuchasthecombinedabsorptionofnitrogen,phosphorus,andpotassium.Thericeleaffolder(LF),Cnaphalocrocismedinalis(Guenée),isoneofthemostdestructivericepestsinAsianrice⁃producingcountries.Recently,majoroutbreaksofLFhavebeenreportedinm
7、anyAsiancountriesincludingChina,severelythreateningriceproduction.RicevarietiesresistanttoLFhaveeitherahighSicelldensityorhighSicontentintheleafblade.Currently,LFpopulationsareprincipallymanagedwithchemicalinsecticidesthathavecausedhighresidual,insecticidere
8、sistanceandaresurgenceofpests.Alternatively,cultivarresistanceandcropmanagementincludingSiamendmentarebeingdeveloped.ThereisincreasingevidenceshowingapositiveassociationbetweenhighplantSicontent
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