Data/hora: 01/06/2024 02:23:07

Provedor de dados: | 91
País: | Brazil
Título: | Growth, biomass production and ions accumulation in Atriplex nummularia Lindl grown under abiotic stress
Autores: | Melo,Hidelblandi F. de; Souza,Edivan R. de; Almeida,Brivaldo G. de; Freire,Maria B. G. dos S.; Maia,Fabíola E.
Data: | 2016-02-01
Ano: | 2016
Palavras-chave: | Salt extraction; Nutritional status; Halophytes; Brazilian semiarid.
Resumo: | ABSTRACT Atriplex nummularia is a halophyte of great importance in the recovery of saline soils and is considered as a model plant to study biosaline scenarios. This study aimed to evaluate biometric parameters, biomass production and the accumulation of ions in A. nummularia grown under abiotic stresses. Cultivation was carried out in a Fluvic Neosol for 100 days, adopting two water regimes: 37 and 70% of field capacity. Plants were irrigated with saline solutions containing two types of salts (NaCl and a mixture of NaCl, KCl, MgCl2 and CaCl2) at six levels of electrical conductivity: 0, 5, 10, 20, 30 and 40 dS m-1, arranged in a 6 x 2 x 2 factorial with 4 replicates, forming 96 plots. At the end of the experiment, plants were divided into leaves, stem and roots, for the determination of fresh matter (FM), dry matter (DM) and estimated leaf area (LA), besides the contents of Ca2+, Mg2+, Na+, K+ and Cl-. The type of salt did not influence plant growth or biomass production; however, it influenced the levels of Ca2+, Mg2+, Na+ and Cl- in the leaves and Mg2+, K+ and Cl- in the roots. Increase in salinity reduced the contents of Ca2+, Mg2+, Na+, K+ and Cl- for all treatments.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000200144
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v20n2p144-151
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.20 n.2 2016
Fonte: | info:eu-repo/semantics/openAccess