Agricultural production of halophytes irrigated with seawater

O’Leary, James W.; Glenn, Edward P.; Watson, M. Carolyn

doi:10.1007/978-94-009-5111-2_21

Cited by 16 publications

(11 citation statements)

References 10 publications

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“…S. persica is distinguished from S. europaea by having an ascending habit, verticillate inflorescence branches and reversed pentagonal central flowers that are truncated at the apex and reach to the upper segment; the species is tetraploid (2n=36; Akhani 2003). Under seawater irrigation, the seeds of S. europaea have an oil content of 28% and a protein content of 30.2% (O'Leary et al 1985). S. europaea is a medicinal herb with diuretic function and its young shoots could be a vegetable.…”

Section: Introductionmentioning

confidence: 99%

Effects of Iso-osmotic Concentrations of NaCl and Mannitol on some Metabolic Activity in Calluses of Two Salicornia species

Torabi

Niknam

2011

In Vitro Cell.Dev.Biol.-Plant

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The comparative effects of salinity and drought on activity of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and polyphenol oxidase (PPO) and contents of protein, proline, hydrogen peroxide, malondialdehyde (MDA), and carotenoids were studied in calluses of Salicornia persica and Salicornia europaea. Calluses were cultured on Murashige and Skoog medium (MS medium) containing iso-osmotic concentrations of NaCl (100, 300, and 600 mM) and mannitol (200, 500, and 1000 mM). Proline content increased in calluses of both species under NaCl-and mannitol-induced stresses. Under both stresses, S. persica accumulated higher amounts of protein as compared to S. europaea. Under both stresses, protein content in S. persica decreased in comparison to control. Antioxidant enzyme activities showed different trends in the two Salicornia species under salt and drought stresses but were higher in S. europaea than in S. persica. Changes of hydrogen peroxide and MDA contents of calluses subjected to salt stress followed a pattern different from that observed under drought stress. MDA content showed similar changes to hydrogen peroxide content. Carotenoid content decreased in both species under both stresses. Overall, at the cellular level, S. europaea calluses were more tolerant to both NaCl-and mannitol-induced stresses than calluses of S. persica.

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Section: Introductionmentioning

confidence: 99%

Effects of Iso-osmotic Concentrations of NaCl and Mannitol on some Metabolic Activity in Calluses of Two Salicornia species

Torabi

Niknam

2011

In Vitro Cell.Dev.Biol.-Plant

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“…The oil recovery from canola seed is 40% with over 90% unsaturated fatty acid contents (Declercq and Daun, 1998). Halophytes such as Cakile edentula (O'Leary et al, 1985) and Crambe abysinnica (Mandal et al, 2002) have been reported to contain 50% and 60% oil, respectively. Cakile maritima is another halophyte from Tunisia studied in some details (Ghars et al, 2005), where different accessions have been reported to contain 25.4-38.8% oil but because of the presence of 25-35% erucic acid, the oil was appropriate only for industrial application and unfit for human consumption.…”

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confidence: 97%

Potential of halophytes as source of edible oil

Weber¹,

Ansari²,

Gul³

et al. 2007

Journal of Arid Environments

141

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“…When grown in very low organic matter soils, common to the non-arable land on which halophytes can be cultivated, C storage in recalcitrant organic matter in soils, enhanced by a decrease in decomposition rate in saline systems, may be increased compared to freshwater systems. Halophytes, especially those such as S. bigelovii that can be grown from seed in seawater irrigation and produce an acceptable biomass, up to 20 t ha-l dry weight, and a marketable product, oilseed, (O'Leary et al, 1985) may prove to be excellent candidates for C sequestration in afforestation programs. Field trials are 188 currently underway to determine a C budget for cultivating S. bigelovii in very low orgaric matter sandy soils irrigated exclusively with seawater.…”

Section: Discussionmentioning

confidence: 99%

“…Many of these soils support abundant halophyte communities with high rates of annual primary productivity (Le Houerou, 1993). With tidal or supplemental irrigation, halophytes may yield as large a biomass as many agronomic crops (Odum, 1974;O'Leary et al, 1985).…”

Section: Introductionmentioning

confidence: 99%

“…Large scale production of some halophytes, such as Atriplex species, has been proposed to augment animal and food production in arid zones (Glenn et al, 1991;Le Houerou, 1993), while others, such as Salicornia bigelovii, have potential uses for their seed crops (O'Leary, 1985). If grown for C sequestratian for afforestation programs, in areas where plants have not been cultivated previously, decomposition rates will be affected by composition of the plant material, and therefore storage potential, in the soil (Buth and Voesenek, 1987).…”

Section: Introductionmentioning

confidence: 99%

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Effect of salinity and plant species on CO2 flux and leaching of dissolved organic carbon during decomposition of plant residue

1996

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Mitigation of increased concentrations of CO2 in the atmosphere by plants may be more efficient in saline systems with soils lower in organic matter than in other freshwater systems. In saline systems, decomposition rates may be lower and potential soil carbon storage higher than in fresh water systems. The effects of salinity, plant species and time on CO2 surface flux and dissolved organic carbon (DOC) leached during irrigation were determined in the laboratory in microcosms containing sand amended with residues of two halophytes, Atriplex nummularia and Salicornia bigelovii, and one glycophyte, Triticum aestivum. Surface flux of CO2 and DOC leached during decomposition were monitored for 133 days at 24 °C in microcosms containing different plant residue (5% w/w). Microcosms were irrigated every 14 days with distilled water or seawater adjusted to 10, 20, or 40 g L -~ salts. CO2 flux and DOC leached were significantly higher from microcosms amended with A. nummularia residue compared to S. bigelovii or T. aestivum at all salinities and decreased significantly over time for all plant species. Irrigating with water of high salinity, 40 g L -t, compared to distilled water resulted in a decrease in CO2 surface flux and DOC in leachate, but differences were not significant at all sampling dates. Results indicate that plant residue composition, as well as increased salinity, affect CO2 surface flux and DOC in leachate during plant residue decomposition and may be an important consideration for C storage in saline systems.Abbreviation: DOC-dissolved organic carbon.

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Agricultural production of halophytes irrigated with seawater

Cited by 16 publications

References 10 publications

Effects of Iso-osmotic Concentrations of NaCl and Mannitol on some Metabolic Activity in Calluses of Two Salicornia species

Effects of Iso-osmotic Concentrations of NaCl and Mannitol on some Metabolic Activity in Calluses of Two Salicornia species

Potential of halophytes as source of edible oil

Effect of salinity and plant species on CO2 flux and leaching of dissolved organic carbon during decomposition of plant residue

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