Influence of Rice Genotypes on Folding and Spinning Behaviour of Leaffolder (Cnaphalocrocis medinalis) and Its Interaction with Leaf Damage

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    摘要 FoldingandspinningbehaviorofCnaphalocrocismedinalis(Guenee)(Lepidoptera:Pyralidae)indifferentcategoriesofricegenotypesviz.,resistant,susceptible,hybrid,scented,popularandwildricegenotypesweresignificantlydifferent.Longerleafselectiontimeandfoldingtimeperprimaryfold;shorterprimaryfoldandwholeleaffold;lowernumberofbindsperprimaryfoldandwholeleaffoldwererecordedinresistantandwildricegenotypes.Inthecorrelationanalysis,itwasfoundthattheleaffoldingparameterswerepositivelycorrelatedtoleaffolderdamagewhereastheleafspinningparameterswerenegativelycorrelated.Similarly,themorphologicalcharactersdifferedsignificantlyamongthechosengenotypesandwererelatedtoleaffolderdamage.Theleafwidthandtotalproductivetillernumberwerepositivelycorrelatedtoleaffolderinfestation.Resultsalsoindicatedthatthetrichomedensityandlength,leaflengthandplantheightmightcontributetoresistancewhereastotalnumberofgreenleaveshadnoeffectonleaffolderinfestation.Inthescatterplotanalysisbetweenleaffoldingandspinningcharactersandleaffolderdamage,thegenotypeswereseparatedintofourgroupsviz.,resistant(TKM6,Ptb33,LFR831311,OryzarhizomatisandO.minuta),moderatelyresistant(ASD16andCORH1),moderatelysusceptible(ADT36,PusaBasmatiandCB200290)andsusceptible(IR36andTN1).Thepresentinvestigationprovedthattheleafmorphologyviz.,leaflengthandwidth,plantheightandtrichomedensityandlengthmayplayavitalroleinresistanceagainstriceleaffolder.
    机构地区 不详
    出处 《水稻科学:英文版》 2013年6期
    出版日期 2013年06月16日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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