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| Publication Type:
| Report |
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| Author(s): | Buckner, R. C.;
Burrus, P. B. II |
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| Author Affiliation: | USDA, ARS, and University of Kentucky |
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| Title: | Breeding and improvement of tall fescue for turf |
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| Source: | Kentucky Turfgrass Research. 1981, p. 12. |
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| Publishing Information: | Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service |
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| Keywords: | TIC Keywords: Festuca arundinacea; Lolium perenne; Hybrids; Breeding; Breeding program; Leaf width; Row planting; Sod; Planting; Breeding aims
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| Abstract/Contents: | Reports on breeding program to develop tall fescue genetic populations and varieties with increased pest resistance, tolerance to environmental stress, and enhanced esthetic characteristics. Perennial ryegrass x tall fescue hybrid derivative (2n=6x=42) parents previously selected in spaced-plant nurseries for narrow leaf width desirable turf-type qualities, and their polycross progenies (p.c.p.'s) were evaluated in polycross blocks as replicated spaced plants, seeded rows, and sod plots for the narrow leaf character. The rows were seeded at the rate of one gram per 3m of row, and plots were seeded at approximately five kg/ha. Ammonium nitrate was applied broadcast to the sod plots at the rate of 72.5 kg/ha during November each year. Sod plots were mowed weekly at a height of 5cm during the growing season. Leaf width measurements were taken of flag leaves, and the first leaf below the flag leaf when parental spaced plants and first generation polycross progenies were in full bloom. Measurements of parents and p.c.p. leaves were taken ca 5cm from the stem. Leaf width of sod-plots were determined by measurement of the primary growing point and the first axillary leaf below the growing point. Parents and p.c.p.'s varied significantly for both flag and second leaf width indicating considerable genetic variability for both characters. Highly significant differences between generations showed that management influenced leaf width. Plant grown in sod had different leaf width than when grown as spaced plants or in rows. Non-significant generation x genotype, generation x years, and genotype x years interactions for both flag and second leaves suggested that leaf width was highly heritable. A regression of p.c.p. leaf width on parental leaf width gave a narrow sense heritability estimate of 0.70 indicating that genetic variance was largely additive and that progress could be made in developing narrow leafed varieties with enhanced esthetic characteristics. |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related abstract, "Inheritance of leaf-width and seed yield characteristics of Lolium-Festuca hybrid derivatives", Crop Science, 23(2) March/April 1983, p. 300-302, R=3837 R=3837 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Buckner, R. C., and P. B. II Burrus. 1981. Breeding and improvement of tall fescue for turf. KY. Turfgrass Res. p. 12. |
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