Osmotic adjustment in cowpea plants : Interference of methods for estimating osmotic potential at full turgor

Copyright © 2019 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 145(2019) vom: 15. Dez., Seite 114-119
1. Verfasser: Dourado, Pablo Rugero Magalhães (VerfasserIn)
Weitere Verfasser: de Souza, Edivan Rodrigues, Lins, Cíntia Maria Teixeira, de Melo, Hidelblandi Farias, Bentzen Santos, Hugo Rafael, Monteiro, Danilo Rodrigues, Paulino, Martha Katharinne Silva Souza, de Carvalho Leal, Lucas Yago
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Osmolality Osmotic adjustment in cowpea Pressure-volume curve Sap osmotic potential Water 059QF0KO0R Sodium Chloride 451W47IQ8X
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520 |a Copyright © 2019 Elsevier Masson SAS. All rights reserved. 
520 |a Osmotic adjustment is a persisting controversy in studies on the effect of salt and water stress in cowpea crops. Our hypothesis is that the osmotic potential determination method interferes with the osmotic adjustment calculation. The objective of this study was to consider the osmotic adjustment comparing results obtained by pressure-volume (P-V) curves and osmometry. The experiment was conducted in a randomized block design, with six salt water concentrations 0, 20, 40, 60, 80, and 100 mmol L-1 of NaCl in a Fluvisol. The osmotic adjustment found through osmometry were lower than those found through P-V curves. The apoplastic water fraction of the cowpea had a dilution effect, denoting overestimation of the osmotic potential by the methodology based on osmometry. This may be the source of the different interpretations of osmotic adjustment in cowpea plants. Thus, osmotic adjustment should be calculated preferably using the osmotic potential determined by method of pressure-volume curves 
650 4 |a Journal Article 
650 4 |a Osmolality 
650 4 |a Osmotic adjustment in cowpea 
650 4 |a Pressure-volume curve 
650 4 |a Sap osmotic potential 
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650 7 |a Sodium Chloride  |2 NLM 
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700 1 |a de Souza, Edivan Rodrigues  |e verfasserin  |4 aut 
700 1 |a Lins, Cíntia Maria Teixeira  |e verfasserin  |4 aut 
700 1 |a de Melo, Hidelblandi Farias  |e verfasserin  |4 aut 
700 1 |a Bentzen Santos, Hugo Rafael  |e verfasserin  |4 aut 
700 1 |a Monteiro, Danilo Rodrigues  |e verfasserin  |4 aut 
700 1 |a Paulino, Martha Katharinne Silva Souza  |e verfasserin  |4 aut 
700 1 |a de Carvalho Leal, Lucas Yago  |e verfasserin  |4 aut 
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