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| DOI: | 10.0116/j.agwat.2004.04.012 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0378377404001799
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Grieve, C. M.;
Poss, J. A.;
Grattan, S. R.;
Suarez, D. L.;
Benes, S. E.;
Robinson, P. H. |
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| Author Affiliation: | Grattan: Department of LAWR, University of California, Davis, California; Grieve, Poss and Suarez: USDA-ARS Salinity Laboratory, Riverside, California; Robinson: Department of Animal Science, University of California, Davis, California; Benes: Department of Plant Science, California State University, Fresno, California |
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| Title: | Evaluation of salt-tolerant forages for sequential water reuse systems II. Plant-ion relations |
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| Source: | Agricultural Water Management. Vol. 70, No. 2, November 25 2004, p. 121-135. |
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| Publishing Information: | [Amsterdam]: Elsevier Scientific Pub. |
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| # of Pages: | 15 |
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| Keywords: | TIC Keywords: Salt tolerance; Forage; Effluent water; Ions; Drainage; Salinity; Application rates; Tissue testing; Shoots; Toxicity
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| Abstract/Contents: | "Implementation of the saline drainage water reuse program proposed for the westside of San Jauquin Valley (SJV) of California requires development of sustainable cropping systems, which incorporate useful, salt-tolerant agronomic species. Ion compostitions in the ion drainage effluents present in the SJV is unique, with Na+, SO42-, CL-, Mg2+ and Ca2+ predominating in that order. To identify potentially suitable crops for reuse systems, 10 forages were tested in the greenhouse sand cultures located at USDA-ARS George E. Brown Jr. Salinity Laboratory, Riverside, California. Crops were: alfalfa (Medicago sativa L.) cvs. 'Salado' and 'SW 9720'; narrowleaf trefoil (Lotus glaber Greene) cv. 'PI 608022'; broadleaf trefoil (L. ulginosus Schk.) cv. 'Big'; tall wheatgrass (Agropyron elongatum (Host) Beauv.) cv. 'Jose'; alkali sacaton (Sporobolus airoides Torr.); kikuyugrass (Pennisetum cladestinum Hochst. Ex Chiov.) cv. 'Whittet'; paspalum (Paspalum vaginatum Swartz) cvs. PI'299042' and 'Polo'; and bermudagrass (Cynodon dactylon L. Pers.) cv. 'Tifton'. Two saline treatments, 15 and 25 dS m-1, were imposed. Shoots were sub-sampled for mineral ion analysis when the forages were harvested. Patterns of shoot iron concentrations were unique for each species and varied with salinity level, external ion ratios, harvest date and plant age. Plant preference for K+ over Na+ did not appear to be a reliable predictor of salt tolerance. Salt-tolerant crops, such as kikuyugrass and bermudagrass, were highly selective for K+ (SK,Na ~ 200 to 400), whereas selectivity coefficients for the equally salt-tolerant grasses, alkali sacaton and tall wheatgrass, ranged from 20-40. The forages were highly selective for K+ over Mg2+ despite unusually low K+:Mg2+ ratios in the external solutions. Total-S in the herbage was high and generally increased as external SO42- increased. Based on sustained nutritional health and lack of visual signs of toxicity or deficiency symptons, several of the forages tested show promise as suitable candidates for the saline-sodic water reuse systems." |
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| Language: | English |
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| References: | 23 |
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| See Also: | Other items relating to: Effluent Water Use |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Grieve, C. M., J. A. Poss, S. R. Grattan, D. L. Suarez, S. E. Benes, and P. H. Robinson. 2004. Evaluation of salt-tolerant forages for sequential water reuse systems II. Plant-ion relations. Agric. Water Manage. 70(2):p. 121-135. |
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| DOI: 10.0116/j.agwat.2004.04.012 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0378377404001799
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 494.5 W3 A34 |
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