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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1993/Turfgrass/65320,%20U Nevada, Bowman.PDF
Last checked: 11/18/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Bowman, Daniel C. |
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| Monograph Title: | Characterization of Water Use Requirements and Gas Exchange of Buffalograss Turf: [1993 Annual Progress Report], 1993. |
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| Publishing Information: | [Reno, Nevada]: [University of Nevada] |
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| # of Pages: | 4 |
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| Collation: | [4] pp. |
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| Abstract/Contents: | "Since irrigation accounts for nearly half of urban water use, considerable savings could be realized by planting turfgrasses with low water requirements. Buffalograss may be the ideal species for both water savings and aesthetics, but water use data are scarce and one can only speculate on water requirements. This study will generate crop coefficients for buffalograss and identify intraspecific water use differences, if any, among a diverse selection of genotypes. A field project was installed at the UNR Valley Road Field Station to determine water use requirements of seventeen buffalograss genotypes representing a diverse genetic background. This project utilizes a line source water gradient designed to provide a continuum of irrigation columns ranging from a value slightly exceeding potential ET to essentially zero. By planting the buffalograss varieties in strips down the gradient (perpendicular to the irrigation line), turf performance can be measured at any given irrigation amount. Further, minimum irrigation requirements are indicated by that point in the gradient beyond which the turf cannot survive. Plots were planted and established during the summer of 1992. The total experimental plot area measures 46.6 by 26.8 meters, and is surrounded by a 13 meter border planted to 'Vegas' tall fescue. Plugs of 17 buffalograss selections, representing three ploidy levels, were planted on 15 inch centers in individual plots measuring 1.4 by 13.4 meters. The experimental design was a randomized complete block design with four replicates. Mini-lysimeters (15 cm diameter, 30 cm depth and each with a drain hole and removable plug to stop drainage) were planted, four per genotype, and established in the greenhouse. Cores for the lysimeters were drilled in each plot 2 meters from the main irrigation line. These will be used to determine ET gravimetrically under non-limiting conditions. By October, 1993, all genotypes, except the three planted late, were fully established. Both the diploid and tetraploid genotypes were maintaining good color as late as October 12, while the hexaploids were well into dormancy. It is planned to establish the line source gradient beginning July 1, 1994. Both outside lines will be adjusted to water only the tall fescue border. Irrigation will be scheduled based on ET (Penman) as determined with an on-site weather station. Performance, actual ET, and plant water status data will be collected during both the 1994 and 1995 seasons." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related summary article "Characterization of water use requirement and gas exchange of buffalograss turf" 1993 Turfgrass Research Summary [USGA], 1993, p. 26-27, R=65320. R=65320 |
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| Note: | Also appears as pp. 00257-00260 in the USGA Turfgrass Research Committee Reporting Binders for 1993.
"Annual Progress Report, 1993"
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
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Last checked: 11/18/2013
Requires: PDF Reader |
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