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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou817.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Krishnan, Sanalkumar;
Brown, Rebecca Nelson |
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| Author Affiliation: | Department of Plant Sciences, University of Rhode Island, Kingston, Rhode Island |
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| Title: | NA+ and K+ accumulation in perennial ryegrass and red fescue accessions differing in salt tolerance |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 817-827. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Calcium; Festuca rubra subsp. rubra; Lolium perenne; Potassium; Salt tolerance; Sodium; Tissue testing
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| Abstract/Contents: | "The objective of the present study was to investigate the sodium (Na+), potassium (K+) and calcium (Ca2+) accumulation patterns among accessions of perennial ryegrass (Lolium perenne L.) and red fescue (Festuca rubra ssp. rubra) differing in salt tolerance. The red fescue accessions were PI 595057 (FR1), PI 598504 (FR2), PI 610839 (FR3) and PI 632525 (FR4). FR1 was the most salt tolerant, and FR4 the least. The perennial ryegrass accessions PST-2J15 (LP1) and PST-2MNG (LP2) were selected for high salt tolerance, while the cultivar Linn was included as the sensitive entry. The grasses were treated in an ebb-and-flow water bath filled with half-strength Hoagland solution and NaCl. The concentration of NaCl was increased by 2500 mg L-1 every two weeks up to 15000 mg L-1 for the perennial ryegrass accessions and 7500 mg L-1 for the red fescue accessions. Tissue samples taken from crowns, young leaves, old leaves and roots of salt stressed red fescue and perennial ryegrass accessions were analyzed for Na+, K+ and Ca2+ content using an Inductively Coupled Plasma Mass Spectrometer (ICP-MS). Young leaves of FR1 accumulated 73.9% less Na+ than young leaves of FR4. FR1 had a young leaf K+/Na+ ratio 326.8% higher than that of FR4. In perennial ryegrass the young leaves of LP2 accumulated 41.7% less Na+ than Linn and the young leaf K+/Na+ ratios were 618 and 322 percent higher in tolerant accessions LP1 and LP2 than in Linn. This study showed that Na+ exclusion and maintenance of a high K+/Na+ ratio in growing tissue are major salt tolerance mechanisms in both red fescue and perennial ryegrass." |
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| Language: | English |
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| References: | 36 |
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| See Also: | Other items relating to: Salinity Management For Cool Season Grasses |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Krishnan, S., and R. N. Brown. 2009. NA+ and K+ accumulation in perennial ryegrass and red fescue accessions differing in salt tolerance. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 817-827. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou817.pdf
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MSU catalog number: b2548899 |
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