9 research outputs found
Tolerância e potencial fitorremediador de Stizolobium aterrimum associada ao fungo micorrízico arbuscular Glomus etunicatum em solo contaminado por chumbo
Effect of copper oxide nanoparticles on two varieties of sweetpotato plants
Little information is available on the interaction of CuO nanoparticles (nCuO) with tuberous roots.In this study,Beauregard-14(B-14,lowlignin) and Covington COV,highlignin) sweet potato varieties were cultivated until maturity in soil amended with nCuO,bulk copper oxide(bCuO)andCuCl2at25–125mg/kg.TheCu treatments hadno significant influence on chlorophyll content.Gase xchangeparameterswerenotaffectedinB-14.InCOV,however,at125mg/kgtreatments,bCuO reducedtheintercellularCO2(11%),whileCuCl2increaseditby7%,comparedwithcontrol(p≤0.035).At25mg/kgnCuOincreasedthelengthofCOVroots (20.7 ± 2.0cmvs.14.6 ± 0.8cm,p≤0.05).InperidermofB-14,nCuO,at125mg/kg,increasedMgby232%,whiletheequivalentconcentrationofCuCl2 reducedPby410%,comparedwithcontrol(p≤0.05).ThedatasuggestthepotentialapplicationofnCuOasnanofertilizerforsweetpotatostoragerootproduction