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| Web URL(s): | https://stri.lib.msu.edu/vol53-1977/pdf/sptri77053093.pdf#page=20&zoom=125,0,400
Last checked: 10/2003
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Author(s): | Thomas, r. L.;
Taylor, C. J. |
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| Author Affiliation: | Twyford Plant Breeders, Scotts Farm, Kings Sutton, Banbury |
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| Title: | Evaluation of natural populations of amenity grasses for cultivar production |
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| Source: | Journal of the Sports Turf Research Institute. Vol. 53, 1977, p. 112-113. |
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| Publishing Information: | Bingley, England: Sports Turf Research Institute |
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| Keywords: | TIC Keywords: Sports turf; Five component assessment; Cultivar evaluation
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| Abstract/Contents: | "Selection methods are entirely based on the collection and evaluation of natural populations of all the main amenity grass species. All collection is done in the winter months from vegetative material and not seed heads. Material collected in e.g. January of Year 1 is by March - April of that year placed in the field in mowing trials. Assessment of merit and uniformity begin in autumn of Year 1, and continue for two or three years. Evaluation of the merit of collected material is made primarily on the performance of genotypes in mini-plots rather than as spaced plants. These mini-plots (0.23 m x 0.37 m) are subjected to the normal mowing and management appropriate to each particular species. Approximately 10-12 mini-plots (one for each genotype) represent each collection point. In addition, spaced plants of each genotype are placed reasonably close to the corresponding sward plots. Emphasis is placed on rapid, unsophisticated methods for examining the performance of a large volume of collected material. Selection for merit is primarily based on inter-population assessment - whole populations being considered as far as possible as individual units. From those populations selected for merit, some genotypes are usually excluded, mainly on the basis of non-uniformity. The small percentage of populations selected in this phase (Phase 1) are further cloned as individual genotypes and seed collected off the individual spaced plants to make two mini-plots per genotype per selected population. These are more closely examined mown plots in Years 2-4. This is termed Phase 2. In Phase 3, larger 2m2 plots of the populations selected from Phase 2 are subjected to a greater variety of management treatments. This method has been successful in that a number of registered cultivars have been produced in the relatively short time of three to four years." |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Thomas, r. L., and C. J. Taylor. 1977. Evaluation of natural populations of amenity grasses for cultivar production. J. Sports Turf Res. Inst. 53:p. 112-113. |
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| Web URL(s):
https://stri.lib.msu.edu/vol53-1977/pdf/sptri77053093.pdf#page=20&zoom=125,0,400
Last checked: 10/2003
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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