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ID:23197497
大小:12.15 MB
页数:78页
时间:2018-11-05
《水稻对双草醚敏感性差异和助剂对双草醚药效影响研究》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、万方数据些墨型曼!.一SENSITIVEDIFFERENCEOFBISPYRIBAC.SoDIUMINRICEANDTHE玎讧PRoVINGRoLEOFADDITⅣESONITSHERBICIDEEFFECTSABSTRACTBispyribac—sodiumisoneofthepyrimidinesalicylicherbicideswhichisdevelopedbyJapaneseCombinatorialChemistryIndustryKabuskikiKaishain1988.Bisp
2、yribac-sodiumcaninhibitthechainaminoacid(isoleucine,leucine,vaiine)biosynthesis,andinterferthecelldivision,resultinsensitiveplantsstoppinggrowingandgettingchlorosis,untildeathtoachievethepurposeofweeding.Thispapertakestherice(Oryzasa盯va)asthemainresea
3、rchobjective,determineingthedifferentsensitivitybetweenOryzasativaL.subsp.japonicaS.Kato,OryzasativaL.subsp.indicaS.KatoandOryzasativaL.subsp.hybridriceS.Katoafterbispyribac-sodiumtreatedandanalyzingthemechanismofdifferentsensitivity.Theadjuvantswerea
4、ddedtoexploreanewwaytoimprovetheefficacyandavoidphytotoxicity.Inordertoprovidetheoreticalbasisandtechnicalguidanceforbispyribac—sodiumSOthatitCanbeusedsafelyandefficiently.Themainresuksasfollows:1.Itshoweddifferentsensitivi锣significantlyindifferenttyp
5、esandleafstagesofricetobispyribac-sodium.Atthesameleafstage,japonicaincludingNanjin945,Sidaollwerehighestsensitivitytobispyribac—sodium,indicaincludingNanjing1l,Yangdao26tookthesecondplace,andhybridriceincludingLingyou6362,Guangliangyou192werethelowes
6、t.Alongwiththeleafstagegrowing,thesensitivityofricetobispyribac—sodiumtoricedecreasedgradually.Allthetypesofriceshowedhighersensitivityinl-1.5leafstagethanthatin2—3leafstageand4—5Ieafstageafterbispyribae-sodiumtreated.2.After3g.ai./667m2bispyribac—sod
7、iumtreated,thecellmembranepermeabilityofficeleavesandstemschanged.Theinnibifioneffectofbispyribac—sodiumonindica’Sleavesandstemswerelessthanjaponica.Bispyribac—sodiumtreatmentcoulddestroythechloroplastofrice,reducingthecontentofchlorophyll.Aftertreate
8、d,thechlorophyllcontentsofthericewereincreasedafterdecreasedfirstly.AndtheTBARSIII万方数据水稻对双草醚敏感性差异和助剂对双草醚药效影响研究contentsweredecreasedafterincreasedfirstly.GSHcomemswerefeUtothelowestafter5daftertreatmentandincreasedequaltothecontroltreatment7daf
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