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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1998/61836,%20OK%20State, Taliaferro, bermuda.PDF
Last checked: 05/08/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Taliaferro, C. M.; Martin, D. L.; Bell, G. E.; Anderson, J. A.; Anderson, M. P.; Guenzi, A. C. |
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| Author Affiliation: | Taliaferro: Plant Breeding and Genetics; Martin and Bell: Turfgrass Science; Anderson, J: Stress Physiology; Anderson, M: Plant Molecular Biology; and Guenzi: Cell Biology & Genetics |
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| Monograph Title: | Breeding Seed- and Vegetatively-Propagated Turf Bermudagrasses for Golf Courses: 1998 Annual Progress Report, 1998. |
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| Publishing Information: | [Far Hills, New Jersey]: United States Golf Association; [Stillwater, Oklahoma]: Oklahoma Agricultural Experiment Station, Oklahoma State University |
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| # of Pages: | 20 |
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| Collation: | 20 pp. |
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| Abstract/Contents: | "The principal objective of the turf bermudagrass breeding program at Oklahoma State University is to develop improved seed- and vegetatively-propagated cultivars for the transition zone. Specific goals of the project are to: 1) assemble and evaluate Cynodon germplasm accessions for important descriptors, 2) improve bermudagrass breeding populations for seed production potential and traits conditioning turf performance, 3) identify bermudagrass parental plants with superior combining ability for use in producing inter-and intra-specific F1 hybrids, and 4) develop, evaluate, and release seed-and vegetatively-propagated turf bermudagrass varieties. The development of seeded turf bermudagrass cultivars for the transition zone requires combining into breeding populations cold hardiness, economic seed yield potential and acceptable turf quality. Recurrent selection (RS) for these traits in broad genetic base C. dactylon populations has resulted in incremental improvement with each cycle of selection. The cold tolerant, seeded, synthetic variety OKS 91-11, was released in January 1997. Current synthetic varieties under evaluation as candidates for commercial release are OKS 91-3 and OKS 95-1. Additional plants were selected from recurrent breeding nurseries over the past year to generate new populations. The most elite of the selected plants will also serve as parents in narrow genetic base synthetic varieties. Breeding improvement in the broad base populations has now reached threshold levels that will allow more rapid progress in seeded turf bermudagrass cultivar development. Intra- and inter-specific crosses were made to generate F1 progeny populations for evaluation as potential vegetatively-propagated hybrid turf bermudagrass cultivars. One thousand F1 hybrid progeny from crosses made in 1997 were transplanted into field nurseries in spring 1998 for initial screening Approximately 50 hybrid plants selected over the past 3 years are now in various stages of evaluation in replicated mowing studies. Potentially valuable fertile hybrid plants from 2n=6x=54 chromosome C. dactylon x 2n=2x=18 chromosome C. transvaalensis crosses have been obtained. These tetraploid (2n=4x=36 chromosome) plants have one full genome (9 chromosomes) from C. transvaalensis and 3 full genomes (27 chromosomes) from C. dactylon. Open-pollinated and hybrid progeny from these plants have shown desirable turf characteristics." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related summary article, "Breeding and Evaluation of Turf Bermudagrass Varieties", 1998 Turfgrass and Environmental Research Summary [USGA], 1998, p. 34, R=61836. R=61836 |
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| Note: | Also appears as pp. 194-213 in the USGA Turfgrass Research Committee Reporting Binders for 1998.
"Annual Progress Report"
"1 November 1997-31 October 1998"
"Jointly sponsored by United States Golf Association and Oklahoma Agricultural Experiment Station"
Tables |
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Last checked: 05/08/2013
Requires: PDF Reader |
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