Data/hora: 12/06/2024 15:15:58

Provedor de dados: | Revista Brasileira de Engenharia Agrícola e Ambiental
País: | Brazil
Título: | Gas exchange of four woody species under salinity and soil waterlogging
Autores: | Lima,Alan D.; Sousa,Carlos H. C.; Lacerda,Claudivan F. de; Bezerra,Marlos A.; Silva,Evandro N.; Neves,Antônia L. R.
Data: | 2017-10-01
Ano: | 2017
Palavras-chave: | Photosynthesis; Salt stress; Water excess; Caatinga.
Resumo: | ABSTRACT The objective of this study was to evaluate gas exchanges in seedlings of forest species grown in saline soils and subjected to soil waterlogging cycles. The experimental design was completely randomized in a factorial arrangement, with four forest species: Myracrodruon urundeuva Fr Allemão, Mimosa caesalpiniifolia Benth, Tabebuia impetiginosa (Mart. ex. DC.) Standl and Azadirachta indica A. Juss, two soil salinity levels (1.2 and 8.6 dS m-1) and two water regimes (with and without waterlogging). Measurements of stomatal conductance, transpiration and CO2 assimilation rate were performed before and after each waterlogging period. The interaction of the highest saline level (8.6 dS m-1) and waterlogging caused greater reductions in leaf gas exchange, except for Mimosa caesalpiniifolia Benth. Tabebuia impetiginosa (Mart. ex. DC.) Standl was the species with highest sensitivity to both studied factors of stress.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001000670
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v21n10p670-674
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.21 n.10 2017
Fonte: | info:eu-repo/semantics/openAccess