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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Sifers, S. I.;
Beard, J. B. |
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| Author Affiliation: | International Sports Turf Institute, Inc., College Station, Texas |
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| Title: | Morphological-growth comparisons of four hybrid bermudagrass cultivars at 100 and 20% irradiance levels |
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| Meeting Info.: | Baltimore, MD: October 18-22, 1998 |
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| Source: | 1998 Annual Meeting Abstracts. 1998, p. 127. |
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| Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Morphology; Growth; Hybrids; Cynodon dactylon; Cynodon transvaalensis; Cultivar evaluation; Shade resistance; Shoot density; Biomass; Stolons; Quality; Mowing height; Adaptability
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| Cultivar Names: | Champion; Tifdwarf; Tifgreen; Tifway |
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| Abstract/Contents: | "Bermudagrass has very poor shade adaptation but there are differences among cultivars. Study 1 compared cultivars Champion, Tifdwarf, and Tifgreen at a 4 mm cutting height at 100 and 20% of maximum photosynthetic radiation (PAR). Study 2 compared these cultivars and Tifway at a 12 mm cutting height. Assessed were leaf vertical extension rate (LER), shoot density (SD), shoot/stolon biomass (BIO), stolon number, and turfgrass quality (Q). In study 1 at 100% PAR: Champion LER was the least; Champion & Tifdwarf BIO were similar; Champion stolon number was 76 & 93% more than Tifdwarf & Tifgreen; Q exceeded 5.5 for all cultivars. At 20% PAR Champion LER increased 22%. Tifdwarf & Tifgreen decreases 16 & 46%; Champion SD was 45 & 65 greater than Tifdwarf & Tifgreen; stolon number decreased 42% for Champion, 71% for Tifdwarf, and 100% for Tifgreen; Q decreased 50-60% for all. Study 2 results were similar. At both heights of cut there was a large increase in LER and decrease in Q for all cultivars during the first week in 20% irradiance, and then all cultivars declined until termination. There were no cultivars in either study that were adapted to growth in the severe 20% irradiance condition." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related web article, "Morphological-growth comparisons of four hybrid bermudagrass cultivars (Cynodon dactylon X Cynodon transvaalensis) in full sun and a 20% irradiance level", Coastal Turf Inc. Web Site, December 1997, R=59553 R=59553 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sifers, S. I., and J. B. Beard. 1998. Morphological-growth comparisons of four hybrid bermudagrass cultivars at 100 and 20% irradiance levels. Annu. Meet. Abstr. p. 127. |
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