简介：一个实验被进行在谷物在二个米饭变化，IR36和达利充满和颖果的呼吸特点上学习氮(N)率和申请时间的效果。处理在bothtillering和孕穗期(CK)没有N申请顶肥被在于，N顶肥在的6g/pot直到ering舞台和在孕穗期的N顶肥的2g/pot，N顶肥在的2g/pot直到ering舞台和在孕穗期的N顶肥的6g/pot。结果证明N肥料箱的合适的利用是有用的坚持说涨潮满足，更高的呼吸速度和在迟了的充满的米饭颖果的更高的脱氢酶活动分阶段执行，并且延长为充满并且维持米饭颖果的更高的呼吸速度和脱氢酶活动的功课。在启动的更多的N申请与更多的N申请在相比是更有效的到ering为止。

简介：Byusing304recombinantinbredlinesderivedfromindicaricecrossZhong156/Gumei2,alinkagemapconsistingof177markerlociandcovering12ricechromosomeswasconstructedandemployedformappinggenesconferringblastresistanceinrice.GenomiclocationofgenePi25(t)conferringneckblastresistancetotheChineseisolate92-183(raceZC15)wasverifiedtobelocatedbetweenmarkersA7andRG456onchromosome6,withgeneticdistancesof1.7cMand1.5cMtoA7andRG456,respectively.LeafblastresistanceofGumei2tothePhilippineisolateCa89(lineage4)wasfoundtobecontrolledbyasinglegene.ThegenetentativelydesignatedasPi26(t)waslocatedbetweenmakersB10andR674onchromosome6,withgeneticdistancesof5.7cMand25.8cMtoB10andR674respectively.ResistantallelesatbothgenelociwerederivedfromGumei2,indicatinganexistenceofresistancegeneclusterinGumei2.

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