简介：WhenbeingplantedinwideareasinsouthernChina(23°23'-33°23'N,98°35’-129°19'E,sealevelabove2.7-1285m),Liangyoupeijiu(LYPJ),atwo-linehybridricecombination,showedaseedsettingrateof75.2-77.2%,whichwaslowerby4.3-7.5percentpointthanthatofanindicahybridriceShanyou63(CK),withsimilarvaluesofgrainyieldandcoefficientsofvariationtoCK.Sowingduring5-25thofMayinNanjing(32°3'N.118°48'E),China,LYPJheadedbefore4thSeptember,andgaveaseedsettingrateof75-90%,andgrainyieldover1kg/m^2.Ifthesowingdatewasdelayedto14-15th,June,itsheadingdatewouldbeaslateas17th-21stSeptember,andseedsettingratewouldbedeclinedby10-15%incomparisonwiththatonasuitablesowingdate.Whenfloweringtookplaceatanaveragedailytemperaturerangeof13.7-28.5℃forfivedays,thespikeletfertility(SF)wouldbeincreasedby1.9-10.7%,foreachincrementof1℃.Thesuitable(SF≥90%)andsafe(SF≥75%)temperaturesforfloweringstagewereindicatedtobe26.5°and22.9°,respectively.TogetahighandstableseedsetincultivatingLYPJ,itwasrecommendedthatLYPJwouldbeplantedintheareassouthof34°N,andthefavorableaveragedailytemperatureduringfloweringstageshouldbeat26-28℃.

简介：与较普通活字大一倍的杂交稻Yangliangyou6(YLY6)和Liangyoupeijiu(LYPJ)，andthree线杂交稻Shanyou63(SY63)作为与谷物充满联合的材料，来源，水池和流动特征被调查。种子背景率，谷物充满度和YLY6和SY63的谷物产量比LYPJ的那些显著地高。在YLY6和SY63的灰煤杆和鞘的事的出口和转变百分比比LYPJ的那些显著地高。在谷物的蔗糖synthase，腺苷diphosphoglucosepyrophosphorylase，淀粉synthase和淀粉分叉酶的活动比为LYPJ为YLY6andSY63是更高的，并且很显著地与充满率，吝啬的谷物充满率，谷物充满度和粒重的最大的谷物被相关。每维管束的区域和YLY6和SY63的韧皮部的小穗状花小穗数字，谷物收益和全部的水池负担是比LYPJ的那些显著地小的，并且越大，越多并且越多降低种子背景率负担更差的谷物充满。交通率每YLY6的区域韧皮部比LYPJ或SY63的大。Theresults建议YLY6拥有强壮的来源，大水池活动和有效流动，它为它充满的高种子背景率和好谷物放了一个生理的底。

简介：Thetransgenicrice,Zhongda2,whichwasgeneticallymodifiedfromanindicaricelineZhuxianBbyricechitinasegene(RC24),hadhighresistancetoricesheathblight(Rhizoctoniasolam)inlaboratoryandatwo-yearfieldexperiment.ThepathogencouldinvadesheathofZhongda2andinducesymptomsofthedisease.NodifferencewasnotedintimeofpenetrationorincubationperiodbetweenZhongda2andnon-transgenicricecontrol,ZhuxianB,butthehyphaelysatecouldbeobservedeadierthancontrol.Itsresistanceexpressedastoinhibitthegrowthofmyceliuminhosttissue.F1sfromZhongda2(♂)crossedwithotherfivenon-transgenicricelinesshowedhigherresistancethandonornon-transgenicparents,buttheresistancewasdifferentalongwiththedifferentmaternalparents.

简介：Themajormatesterilegenesinanewphoto/thermo-sensitivegenicmalesterile(PTGMS)lineB06Sofricewereanalyzedbythemanipulationofmixturedistributiontheory.TheresultsindicatedthatapairofmajormalesterilenucleargeneswithlargeeffectswereresponsibleforcontrollingthemalesterilityofB06S.