title: Biomass allocation and nutrients balance related to the concentration of Nitrogen and Phosphorus in Salvinia auriculata (Salviniaceae).
abstract: Aquatic plants can use differential allocation (trade-off) of carbon among their structures depending on the nutrition concentration. Given that N and P are limiting in the growth of plants, our questions were: Are the N and P concentrations in S. auriculata related to the biomass allocation to its structures? Is a differential allocation of N and P between floating and submerged leaves? We evaluated the relation between the nutrients and the biomass allocation, and the trade-off among the leaves using the Spearman correlation. Our results showed that N and P concentrations in S. auriculata are related to the biomass allocation to its structures, and that there is no trade-off of these nutrients between "shoot and root". Thus, we can see the importance of N and P concentration in the biomass of S. auriculata, and why this plant is capable to development in different environments as a weedy.
authors.affiliation: Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brazil.
authors.forename: J C C
authors.initials: JC
authors.lastname: Medeiros
authors.affiliation: Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brazil.
authors.forename: F F
authors.initials: FF
authors.lastname: Coelho
authors.affiliation: Secretaria de Estado de Meio-Ambiente e Desenvolvimento Sustentável, Divinópolis, MG, Brazil.
authors.forename: E
authors.initials: E
authors.lastname: Teixeira
mesh_terms: D018533:Biomass; D002244:Carbon / Q000378:metabolism; D056127:Hydrobiology / Q000379:methods; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism; D010758:Phosphorus / Q000032:analysis / Q000378:metabolism; D018515:Plant Leaves / Q000254:growth & development; D018521:Plant Physiological Phenomena; D057685:Plant Weeds / Q000502:physiology*; D013223:Statistics as Topic
chemical_list: D010758:Phosphorus; D002244:Carbon; D009584:Nitrogen