| Feasibility of irrigating pickleweed (Salicornia bigelovii. Torr) with hyper-saline drainage water. | |
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MedLine Citation:
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PMID: 18765761 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Reuse of drainage water (DW) for irrigation reduces the volume of DW requiring treatment or disposal. We conducted a greenhouse study to evaluate the performance of the halophyte Salicornia bigelovii Torr. when irrigated with hyper-saline DW and seawater (SW) treatments, ranging from 1/3 strength to full strength (18-49 dS m(-1)), in a sand-culture system. Results indicate that Salicornia grows well over the entire range of iso-osmotic SW and DW salinity treatments. Moreover, when boron (B) was added to SW treatments to concentrations equivalent to that of corresponding 1/3- and 2/3-strength DW treatments (i.e., 9 and 17 mg L(-1)), growth was not affected, and tissue B concentrations were <150 mg kg(-1) dry wt. However, when plants were irrigated with synthetic DW where B was reduced to solution culture levels (0.5-1.0 mg L(-1)), plants generally performed worse than when irrigated with actual DW high in B at the same salinity level. Evapotranspiration (ET) rates exceeded that lost from an evaporation pan from 1.5 to 2.5 times. Using a method accounting for changes in the isotopic signature of water in the reservoir due to evaporation, we estimated that high ET rates were due primarily to high transpiration rates (>78% of ET). The salt content in the tissue was very high (ash content 43-52%), but ionic composition in the shoot tissue reflected that of the treatment water used to irrigate the plants. These data indicate that hyper-saline DW, characteristic of California's San Joaquin Valley, can be used to irrigate Salicornia and substantially reduce drainage volumes. |
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Authors:
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S R Grattan; S E Benes; D W Peters; F Diaz |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of environmental quality Volume: 37 ISSN: 0047-2425 ISO Abbreviation: J. Environ. Qual. Publication Date: 2008 Sep-Oct |
Date Detail:
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Created Date: 2008-09-03 Completed Date: 2008-10-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0330666 Medline TA: J Environ Qual Country: United States |
Other Details:
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Languages: eng Pagination: S149-56 Citation Subset: IM |
Affiliation:
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Dep. of LAWR, One Shields Ave., Univ. of California, Davis, CA 95616, USA. srgrattan@ucdavis.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Agriculture
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methods* Biomass Chenopodiaceae / drug effects, growth & development*, metabolism Ions / metabolism Plant Transpiration / drug effects Salinity* Sulfates / pharmacology* Water Supply* |
| Chemical | |
Reg. No./Substance:
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0/Ions; 0/Sulfates; 7757-82-6/sodium sulfate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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