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| DOI: | 10.1111/j.1744-7348.2009.00332.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2009.00332.x/full
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2009.00332.x/pdf
Last checked: 01/31/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Breman, J. W.;
Sinclair, T. R.;
Blount, A. R.;
Quesenberry, K. H.;
Brennan, M. M. |
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| Author Affiliation: | Breman, Sinclair, Blount and Quesenberry: Department of Agronomy; Brennan: Department of IFAS Statistics, University of Florida, Gainesville, FL, USA |
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| Title: | Leaf vascular dimensions associated with freeze tolerance in bahiagrass (Paspalum notatum) |
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| Source: | Annals of Applied Biology. Vol. 155, No. 2, October 2009, p. 219-223. |
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| Publishing Information: | London: Cambridge University Press. |
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| # of Pages: | 5 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2009.00332.x/abstract
Last checked: 01/31/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Breeding improvement; Cold resistance; Genotypes; Leaves; Paspalum notatum; Pastures; Xylem
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| Abstract/Contents: | "Foliage damage as a result of individual freeze events is a major limitation to the expansion of bahiagrass (Paspalum notatum) pastures and hay production in Southeastern USA. Greater tolerance to such freeze events would allow production deeper into the fall and winter and allow expansion of this species into colder regions. While it has been reported that small cells are more tolerant to freeze damage, this possibility has not been explored in bahiagrass. Specifically, the hypothesis was examined that xylem vessels with smaller diameter in the midrib of leaves are associated with freeze tolerance among bahiagrass genotypes. Vascular bundle diameter was also measured as a possible index of xylem cell size. A total of eight bahiagrass genotypes were eventually studied representing four freeze-sensitive and four freeze-tolerant lines. There was a clear distinction in xylem cell size between the freeze-sensitive and the freeze-tolerant lines. The freeze-tolerant genotypes had xylem element cells that were significantly smaller than the freeze-sensitive genotypes. Averaged across three leaf positions and all genotypes, the xylem element diameter for the freeze-sensitive lines was 222 μm and for the freeze-tolerant lines was only 164 μ m. A similar difference was observed in overall vascular bundle diameter with freeze-sensitive lines having a mean of 1168 μ m and the freeze-tolerant lines a mean of 917 lm. These results indicated that the diameter of the xylem cells in the vascular midrib of bahiagrass may be an important variable influencing the sensitivity among genotypes to freeze damage." |
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| Language: | English |
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| References: | 10 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Breman, J. W., T. R. Sinclair, A. R. Blount, K. H. Quesenberry, and M. M. Brennan. 2009. Leaf vascular dimensions associated with freeze tolerance in bahiagrass (Paspalum notatum). Ann. Appl. Biol. 155(2):p. 219-223. |
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| DOI: 10.1111/j.1744-7348.2009.00332.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2009.00332.x/full
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2009.00332.x/pdf
Last checked: 01/31/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2209338 |
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