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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/2000/72144,%20%20U%20Arizona, Marcum.PDF
Last checked: 02/12/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Marcum, K. B.; Ray, D. T.; Engelke, M. C.; Wess, G. |
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| Author Affiliation: | Marcum, Ray, and Engelke: Faculty; and Wess: Graduate Student, University of Arizona, and Texas A&M University |
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| Monograph Title: | Determining the Heritability of Salt Gland Density: A Salinity Tolerance Mechanism of Chloridoid Warm Season Turfgrasses: USGA Annual Report, 2000. |
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| Publishing Information: | [Tuscon, Arizona]: University of Arizona; [College Station, Texas]: Texas A&M University |
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| # of Pages: | 15 |
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| Collation: | 8, [7] pp. |
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| Abstract/Contents: | "Water shortages are resulting in a major shift to use of secondary, saline water sources for turf irrigation, particularly in the western U.S., and in coastal areas. Though there is increasing need for improved salt tolerant turfgrass cultivars, breeding progress has been limited. Salt tolerance in the Choloridoid warm season grasses, including bermudagrass, buffalograss, zoysiagrass, and saltgrass (Distichlis spp.) is strongly associated with shoot salt exclusion, which seems to be associated with leaf salt gland density. We are examining the relationship between salt gland density and salt tolerance in Zoysia japonica. Fifteen entries are being examined for salinity tolerance and salt gland denisty. These fifteen are being crossed to produce offspring to examine salt gland heritability or genetic control (i.e. if it is passed on from parent to offspring). Results show a broad range of salinity tolerance. The most tolerant entries were: Palisades, El Toro, J3-2, P58, Beliair, Meyer, and Crowne. In addition, salt gland density was highly correlated with salt tolerance, indicating that salt gland density is an important salt tolerance mechanism in zoysiagrass. Also, broad sense heritability estimates of salt gland density were high, indicating that genetics, not environment, controls salt gland density. This would support the use of salt gland density as a selection tool in turfgrass breeding programs for development of salt tolerant cultivars. The use of gland density as a selection tool would greatly expedite the breeding process, as there would no longer be a need to screen large numbers of accessions under controlled environmental stress (e.g. salinity) conditions. F1 progeny are currently being produced, and sampled for salt gland density, which will allow and estimation of narrow sense of heritability of salt gland density." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related summary article, "Determining the heritability of salt gland density: A salinity tolerance mechanism of chloridoid warm-season turfgrasses", 2000 Turfgrass and Environmental Research Summary [USGA], 2000, p. 42, R=72144. R=72144 |
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| Note: | Tables
Graphs
"November 26, 2000"
"USGA Annual Report"
Also appears as 15 pp. in the USGA Turfgrass Research Committee Rerporting Binders for 2000. |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 215164 |
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Last checked: 02/12/2013
Requires: PDF Reader |
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