Consulta: creatorFacets:"Marques,Elton C."
Registros recuperados: 2
Data/hora: 13/06/2024 04:13:23

Organic solutes in coconut palm seedlings under water and salt stresses
Provedor de dados: 91
Autores: Silva,Alexandre R. A. da; Bezerra,Francisco M. L.; Lacerda,Claudivan F. de; Miranda,Rafael de S.; Marques,Elton C.; Gomes-Filho,Enéas.
ABSTRACT The objective of this study was to investigate the biochemical mechanisms associated with isolated and/or concurrent actions of drought and soil salinity in seedlings of coconut tree, through the accumulation of organic solutes (soluble carbohydrates, soluble amino N and free proline) in leaves and roots. The experiment, conducted in a protected environment, in Fortaleza, Brazil, in a randomized block design, in a split-plot arrangement, evaluated the effects of different levels of water stress (plots) by imposing distinct percentages of replacement of water losses through crop potential evapotranspiration - ETpc (20, 40, 60, 80 and 100%), associated with subplots consisting of increasing levels of soil salinity in saturation extract (1.72, 6.25,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucifera L.; Multiple stresses; Biochemical mechanisms.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001101002

Physiological and ionic changes in dwarf coconut seedlings irrigated with saline water
Provedor de dados: 91
Autores: Lima,Breno L. de C.; Lacerda,Claudivan F. de; Ferreira Neto,Miguel; Ferreira,Jorge F. da S.; Bezerra,Antonio M. E.; Marques,Elton C.
ABSTRACT Salt-tolerant plants are important to cope with salinity and/or sodicity problems in semiarid regions. The dwarf coconut palm (Cocos nucifera L.) has emerged as a salt-tolerant crop once established. However, little is known about the mechanisms that contribute to the survival of coconut seedlings under salinity stress. This study aimed to evaluate the effect of saline water on morpho-physiological and biochemical responses of dwarf coconut seedlings. Treatments were composed of five levels of water salinity, expressed by its electrical conductivity (ECw), as follows: 0.9 (control); 5.2; 10.1; 15.3 and 19.3 dS m-1 in a completely randomized design with four replications. The high levels of organic solutes (carbohydrates and soluble amino-N) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucifera L.; Salt tolerance; Organic solutes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200122