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| DOI: | 10.21273/HORTTECH.22.4.479 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/22/4/article-p479.xml
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| Publication Type:
| Refereed |
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| Author(s): | Volterrani, Marco;
Magni, Simone;
Gaetani, Monica;
Lulli, Filippo |
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| Author Affiliation: | Department of Agronomy and Management of the Agroecosystem, Centre for Research on Turfgrass for Environment and Sports (CeRTES), University of Pisa, Pisa, Italy |
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| Title: | Trinexapac-ethyl effects on stolon activity and node vitality of 'Tifway' hybrid bermudagrass |
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| Section: | Research reports
Other records with the "Research reports" Section
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| Source: | HortTechnology. Vol. 22, No. 4, August 2012, p. 479-483. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Application rates; Comparisons; Cultivar evaluation; Cultivar variation; Cynodon dactylon x Cynodon transvaalensis; Establishment rate; Growth regulator evaluation; Growth retardation; Growth studies; Horizontal growth; Mowing frequency; Node survival; Non-target effects; Stolon growth; Stoloniferous growth habit; Translocation; Trinexapac-ethyl; Vertical growth; Weeks after treatment
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| Cultivar Names: | Tifway |
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| Abstract/Contents: | "The stoloniferous-rhizomatous growth habit of bermudagrass [Cynodon dactylon (L.) Pers.] is a key feature for fast turf establishment and effective recovery from wear and divots. Trinexapac-ethyl (TE) is a plant growth regulator used extensively to reduce the need for mowing. However, vertical growth suppression of vertical growth has the potential to reduce horizontal growth. Furthermore, side effects reported on several physiological functions could affect node ability to generate new plants. In a greenhouse trial, Tifway hybrid bermudagrass (C. dactylon x C. transvaalensis Burtt Davy) grown in pots was treated with increasing rates of TE (untreated control, 0.015, 0.075, 0.150, and 0.300 gĀ·m-2). The treatment effects on the number of stolons produced and their linear growth rate, node production, node vitality, and daughter plant characteristics were investigated. The effects of growth inhibition because of TE application on nodes and daughter plants and the relative duration were also assessed. Starting from 2 weeks after treatment (2 WAT), TE application resulted in reductions of stolon length of 24.6% and 52.9% compared with the untreated control, while at 3 and 4 WAT only 0.150 and 0.300 gĀ·m-2 application rates produced significant reductions in stolon length with values of 37.1% and 52.9% at 3 WAT and of 34.1% and 48.3% at 4 WAT, respectively. The number of nodes per stolon was unaffected by treatments. No effect was observed in node vitality but daughter plants showed a postinhibition growth enhancement when nodes were excised at 4 WAT. TE application at the labeled rate did not affect the number of stolons produced by Tifway hybrid bermudagrass compared with untreated control, while a reduction in stolon growth rate was recorded only at 2 WAT. Application at higher rates reduced stolon growth rate longer than labeled rate but not stolon production. None of the treatments reduced the number of vital nodes. Application rates higher than labeled rate produced a postinhibition growth enhancement in plants that originated from nodes excised at 4 WAT." |
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| Language: | English |
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| References: | 19 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Volterrani, M., S. Magni, M. Gaetani, and F. Lulli. 2012. Trinexapac-ethyl effects on stolon activity and node vitality of 'Tifway' hybrid bermudagrass. HortTechnology. 22(4):p. 479-483. |
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| DOI: 10.21273/HORTTECH.22.4.479 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/22/4/article-p479.xml
Last checked: 04/28/2020
Access conditions: Item is within a limited-access website
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/22/4/article-p479.xml
Last checked: 04/28/2020
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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