Phytodesalination of a salt-affected soil with the halophyte Sesuvium portulacastrum L. to arrange in advance the requirements for the successful growth of a glycophytic crop.
In the present work, we studied the potential of the obligate halophyte, Sesuvium portulacastrum L., to desalinize an experimentally-salinized soil after the following criteria: (i) decrease in soil salinity and sodicity, (ii) plant biomass capacity to accumulate sodium ions, and (iii) phytodesalinized soil quality (equivalent to growth of a glycophytic test culture of Hordeum vulgare L.). The cultivation of the halophyte on the salinized soil (phytodesalination culture) led to a marked absorption of Na(+) ions by S. portulacastrum roots and their accumulation in the above-ground biomass up to 872 mg plant(-1) and 4.36 g pot(-1) (about 1 tha(-1)). The decrease in salinity and sodicity of the phytodesalinized soil significantly reduced the negative effects on growth of the test culture of H. vulgare. Furthermore, the phytodesalination enabled H. vulgare plants to keep a high water content and to develop a higher biomass with relatively high K and low Na contents.
Rabhi
Mokded
M
Laboratory of Plant Adaptation to Abiotic Stresses (LAPSA), Biotechnology Centre of Borj Cedria, P.O. Box 901, 2050 Hammam-Lif, Tunisia. mokdedrabhi@yahoo.fr
Ferchichi
Siwar
S
Jouini
Jihène
J
Hamrouni
Mohamed Hédi
MH
Koyro
Hans-Werner
HW
Ranieri
Annamaria
A
Abdelly
Chedly
C
Smaoui
Abderrazak
A
D035722:Aizoaceae / Q000378:metabolism*; D000704:Analysis of Variance; D001467:Hordeum / Q000254:growth & development*; D012965:Sodium Chloride / Q000302:isolation & purification* / Q000378:metabolism; D012989:Soil Pollutants / Q000302:isolation & purification* / Q000378:metabolism
D012989:Soil Pollutants; D012965:Sodium Chloride