Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens
The susceptibility of warm-season turfgrasses such as bermudagrass (Cynodon spp.) to winter injury in the transition zone is a major concern. Therefore, the objective of the study was to evaluate five golf course putting green-type experimental genotypes (OKC6318, OKC0805, OKC1609, OKC0920, and OKC3...
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| Format: | Article |
| Language: | English |
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American Society for Horticultural Science (ASHS)
2021-02-01
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| Series: | HortScience |
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| Online Access: | https://journals.ashs.org/hortsci/view/journals/hortsci/56/4/article-p478.xml |
| _version_ | 1819072676457611264 |
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| author | Lakshmy Gopinath Justin Quetone Moss Yanqi Wu |
| author_facet | Lakshmy Gopinath Justin Quetone Moss Yanqi Wu |
| author_sort | Lakshmy Gopinath |
| collection | DOAJ |
| description | The susceptibility of warm-season turfgrasses such as bermudagrass (Cynodon spp.) to winter injury in the transition zone is a major concern. Therefore, the objective of the study was to evaluate five golf course putting green-type experimental genotypes (OKC6318, OKC0805, OKC1609, OKC0920, and OKC3920) and three commercially available bermudagrasses (‘Champion Dwarf’, ‘TifEagle’, and ‘Tahoma 31’) for freeze tolerance by subjecting them to 11 freezing temperatures (–4 to –14 °C) under controlled environment conditions. The experiment was conducted in batches, with four genotypes per batch, and each batch was replicated in time. The mean lethal temperature to kill 50% of the population (LT50) for each genotype was determined. There were significant differences in LT50 values among the bermudagrass genotypes. ‘Champion Dwarf’ had an LT50 value ranging from –5.2 to –5.9 °C across all three batches. The experimental genotypes tested in this study had LT50 values ranging from –7.0 to –8.1 °C and were each lower than that of ‘Champion Dwarf’. ‘Tahoma 31’, the top performing genotype, had an LT50 value ranging from –7.8 to –9.0 °C across all three batches. OKC 3920 was the only experimental genotype with an LT50 value in the same statistical group as ‘Tahoma 31’. The information gained from this research would be useful for breeders to gauge the genetic gain in freeze tolerance in breeding golf course putting green-type bermudagrass. |
| first_indexed | 2024-12-21T17:41:31Z |
| format | Article |
| id | doaj.art-a7d9fb0f4a4b44cb9a3a7ba07194ad87 |
| institution | Directory Open Access Journal |
| issn | 2327-9834 |
| language | English |
| last_indexed | 2024-12-21T17:41:31Z |
| publishDate | 2021-02-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortScience |
| spelling | doaj.art-a7d9fb0f4a4b44cb9a3a7ba07194ad872022-12-21T18:55:36ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342021-02-01564478480https://doi.org/10.21273/HORTSCI15606-20Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting GreensLakshmy GopinathJustin Quetone MossYanqi WuThe susceptibility of warm-season turfgrasses such as bermudagrass (Cynodon spp.) to winter injury in the transition zone is a major concern. Therefore, the objective of the study was to evaluate five golf course putting green-type experimental genotypes (OKC6318, OKC0805, OKC1609, OKC0920, and OKC3920) and three commercially available bermudagrasses (‘Champion Dwarf’, ‘TifEagle’, and ‘Tahoma 31’) for freeze tolerance by subjecting them to 11 freezing temperatures (–4 to –14 °C) under controlled environment conditions. The experiment was conducted in batches, with four genotypes per batch, and each batch was replicated in time. The mean lethal temperature to kill 50% of the population (LT50) for each genotype was determined. There were significant differences in LT50 values among the bermudagrass genotypes. ‘Champion Dwarf’ had an LT50 value ranging from –5.2 to –5.9 °C across all three batches. The experimental genotypes tested in this study had LT50 values ranging from –7.0 to –8.1 °C and were each lower than that of ‘Champion Dwarf’. ‘Tahoma 31’, the top performing genotype, had an LT50 value ranging from –7.8 to –9.0 °C across all three batches. OKC 3920 was the only experimental genotype with an LT50 value in the same statistical group as ‘Tahoma 31’. The information gained from this research would be useful for breeders to gauge the genetic gain in freeze tolerance in breeding golf course putting green-type bermudagrass.https://journals.ashs.org/hortsci/view/journals/hortsci/56/4/article-p478.xmlartificial freezingcontrolled environmentcynodon dactyloncynodon transvaalensislethal temperaturewinter |
| spellingShingle | Lakshmy Gopinath Justin Quetone Moss Yanqi Wu Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens HortScience artificial freezing controlled environment cynodon dactylon cynodon transvaalensis lethal temperature winter |
| title | Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens |
| title_full | Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens |
| title_fullStr | Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens |
| title_full_unstemmed | Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens |
| title_short | Quantifying Freeze Tolerance of Hybrid Bermudagrasses Adapted for Golf Course Putting Greens |
| title_sort | quantifying freeze tolerance of hybrid bermudagrasses adapted for golf course putting greens |
| topic | artificial freezing controlled environment cynodon dactylon cynodon transvaalensis lethal temperature winter |
| url | https://journals.ashs.org/hortsci/view/journals/hortsci/56/4/article-p478.xml |
| work_keys_str_mv | AT lakshmygopinath quantifyingfreezetoleranceofhybridbermudagrassesadaptedforgolfcourseputtinggreens AT justinquetonemoss quantifyingfreezetoleranceofhybridbermudagrassesadaptedforgolfcourseputtinggreens AT yanqiwu quantifyingfreezetoleranceofhybridbermudagrassesadaptedforgolfcourseputtinggreens |