Data/hora: 01/06/2024 09:47:17

Provedor de dados: 	Revista Brasileira de Engenharia Agrícola e Ambiental	
País: 	Brazil	
Título: 	Physiological responses of lima bean subjected to salt and water stresses	
Autores: 	Pereira Filho,João V.; Viana,Thales V. de A.; Sousa,Geocleber G. de; Chagas,Keivia L.; Azevedo,Benito M. de; Pereira,Carmem C. M. de S.	
Data: 	2019-12-01	
Ano: 	2019	
Palavras-chave: 	Phaseolus lunatus L.; Photosynthesis; Water quality; Water deficit.	
Resumo: 	ABSTRACT Under water deficit and/or salt stress conditions, crops suffer from several physiological disturbances, which lead to the reduction in growth and, consequently, decreases in their yields. Thus, the objective of this study was to evaluate the physiological responses of lima bean, cultivar Espírito Santo, under different irrigation water salinity associated to two water regimes. The experiment was carried out in the experimental area of ​​the Universidade Federal do Ceará, Brazil, from September to November 2017, and it was carried out in pots in full sun, under a completely randomized design in split plots, where water salinities (1.1, 2.1, 3.1, 4.1 and 5.1 dS m-1) were considered as the plots, and the treatments of water regime (50 and 100% of the reference evapotranspiration - ETo) were considered as the subplots. At 45 days after sowing, leaf gas exchanges and relative index of total chlorophyll (SPAD index) were evaluated. In general, the increase of salt concentration in irrigation water causes reductions in the physiological responses of lima beans. Under a water regime of 50% ETo, the instantaneous and intrinsic water use efficiency is higher.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001200959	
Editor: 	Departamento de Engenharia Agrícola  - UFCG	
Relação: 	10.1590/1807-1929/agriambi.v23n12p959-965	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Engenharia Agrícola e Ambiental  v.23 n.12 2019	
Fonte: 	info:eu-repo/semantics/openAccess