Fastlink to record 9245
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| Full TGIF Record # 9245 Item 1 of 1 |
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| Web URL(s): | http://archive.lib.msu.edu/tic/ressum/1986/16funk.pdf?_ga=1.213020116.1383136656.1456948762 Last checked: 01/20/2017 Requires: PDF Reader |
| Publication Type: | Report |
| Author(s): | Funk, C. Reed |
| Author Affiliation: | Rutgers University |
| Title: | Breeding and Evaluation of Kentucky Bluegrass, Tall Fescue, and Perennial Ryegrass for Golf |
| Source: | Annual Turfgrass Research Report [USGA/GCSAA]. December 1986, p. 16. |
| Publishing Information: | Far Hills, New Jersey: United States Golf Association, Golf House. |
| # of Pages: | 1 |
| Full Report URL: | http://turf.lib.msu.edu/rprl/141.pdf Last checked: 9/2001 Requires: Adobe Acrobat Notes: This is the entire full report! |
| Keywords: | TIC Keywords: Endophytic fungi; Festuca arundinacea; Germplasm; Lolium perenne; Pest resistance; Poa pratensis |
| Abstract/Contents: | "1. Visual assessment via the high canopy resistance - low leaf area concept offers a rapid, economical approach for screening large numbers of mowed bermudagrass or mowed zoysiagrass plantings under field conditions for low water use rates. 2. A procedure for incorporating radioactive 14CO2 into turfs and then assaying shoot and root sections for radioactivity has been successfully developed and tested for use in rooting studies. 3. A system for growing turf, enabling the harvest of the entire root system with undamaged root hairs has been successfully developed and tested. 4. Substantial differences in terms of root hair distribution and length are evident among 13 warm-season turfgrass species. 5. The eleven major warm-season turfgrass species and cultivars vary substantially in drought resistance. 6. Of the species studies, zoysiagrass, centipedegrass, and bermudagrass are more drought resistant than St. Augustinegrass and seashore paspalum. 7. A high leaf water potential, extensive root system, and high wax cover over the stomata contribute to a high level of drought avoidance in bermudagrass and centipedegrass. This was confirmed by the higher leaf firing in the polyethylene glycol solution. 8. Since zoysiagrass possessed a shallow root system and low leaf water potential, a high drought tolerance is probably the major mechanism contributing to drought resistance. Low leaf firing in the polyethylene glycol solution supports this conclusion. 9. Zoysiagrasses possess especially strong drought resistance due primarily to internal drought tolerance mechanisms. 10. Root extension length did not appear to be the controlling factor in drought resistance or the avoidance dimension. Tifway bermudagrass and St. Augustinegrass had long extensions, but poor drought resistance. Conversely, Texturf 10 and Tifgreen bermudagrasses had long extension and good resistance. Total root dry weight and root shoot ratio were similarly split, and no firm conclusion can be made. 11. With the exception of the St. Augustinegrass, it appears that the total number of roots in the soil profile is what influences which species are the most drought resistant. 12. Most warm-season species having good drought avoidance and/or resistance had showed closed stomata or stomata blocked by wax layers. 13. The drought susceptible warm-season turfgrass species maintained open stomata and/or less wax accumulation across the stomata. 14. Leaf extension rate, internode length, visual quality when the nitrogen fertility rate is known, and tissue nitrogen content are useful parameters in identifying bermudagrass cultivars possessing low nitrogen stress tolerance. 15. Proline content may be an indicator of proneness to drought stress injury. Those turfgrass species that are prone to drought injury usually exhibited more rapid proline accumulation than other species that are relatively less susceptible to drought injury. This can be partially explained by the relationship between the degree of leaf firing and the ratio between the shoot proline level before and after water stress." |
| Language: | English |
| References: | 0 |
| See Also: | See also related manuscript, Breeding and Evaluation of Kentucky Bluegrass, Tall Fescue, and Perennial Ryegrass for Golf Turf Use: 1986 Annual Research Report, 1986, R=254017.R=254017 |
| See Also: | Other Reports from this USGA research project: 1983-01-001 |
| Note: | Entire text as abstract. |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Funk, C. R. 1986. Breeding and Evaluation of Kentucky Bluegrass, Tall Fescue, and Perennial Ryegrass for Golf. Turfgrass Environ Res. Summ. p. 16. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/9245 |
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| Web URL(s) : | http://turf.lib.msu.edu/rprl/141.pdf Last checked: 9/2001 Requires: Adobe Acrobat Notes: This is the entire full report! |
| MSU catalog number: | SB 433 .A1 A6 |
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