Effects of Rhizosphere Dissolved Oxygen Content and Nitrogen Form on Root Traits and Nitrogen Accumulation in Rice

(整期优先)网络出版时间:2011-04-14
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Dissolvedoxygenandnitrogenformhaveimportanteffectsonricerootgrowthandnitrogenavailability.Anindicahybridrice,Guodao1,andaconventionaljaponicarice,Xiushui09,wereculturedinhypoxicnutrientsolutionwithNH4NO3or(NH4)2SO4asthenitrogensourceforsixweeksinpools.AportionoftheGuodao1seedlingsaftertreatmentinthepoolsforfourweeksweretransferredtoasplit-rootsystematdifferentdissolvedoxygencontentsandculturedforanadditionaltwoweeks.Biomass,rootmorphol...