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| Web URL(s): | https://scisoc.confex.com/crops/2015am/webprogram/Paper93989.html
Last checked: 11/20/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Zhang, Xunzhong;
Ervin, Erik H.;
Hamill, Alyssa |
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| Author Affiliation: | Crop and Environmental Sciences, Virinia Tech, Blacksburg, VA |
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| Title: | Trinexapac-ethyl and auxin impact on root growth and quality of creeping bentgrass under deficit irrigation |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass science: II
Other records with the "Turfgrass science: II" Section
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| Meeting Info.: | Minneapolis, Minnesota: November 15-18, 2015 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2015, p. 93989. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Auxins; Combination treatments; Drought resistance; Fertilizer evaluation; Growth analysis; IBA; Irrigation rates; Plant growth regulators; Root growth; Trinexapac-ethyl
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| Abstract/Contents: | "Creeping bentgrass quality declines during summer months. Trinexpac-ethyl (TE) is commonly used to suppress shoot growth but its impact on root growth and drought tolerance has not been conclusively studied. This study was designed to investigate effects of TE (4.5 mg m-2) alone or in combination with auxin (indole-3-butyric acid, IBA, 2 μM) on root growth and quality of creeping bentgrass under two soil moisture regimes - well-watered and mild drought stress. Treatments (TE, IBA, and TE+IBA) were applied to the foliage biweekly. Two weeks after initial treatment, the grass was subjected to either well-watered or deficit irrigation (compensate for 70% to 30% loss via evapotranspiration) for 42 days. The TE, IBA, and TE+IBA increased root viability, and TE + IBA also increased root biomass relative to the control under deficit irrigation. The TE and TE + IBA improved turf quality, net photosynthetic rate, and transpiration rate under deficit irrigation. The TE, IBA, and TE + IBA increased leaf indole-3-acetic acid, and abscisic acid content under deficit irrigation. TE and TE + IBA also increased leaf cytokinin isopentenyl adenosine content under deficit irrigation. The results suggest foliar application of TE plus auxin may improve creeping bentgrass quality, root function, and physiological fitness under deficit irrigation conditions." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"418-14"
"Poster Number 726" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, X., E. H. Ervin, and A. Hamill. 2015. Trinexapac-ethyl and auxin impact on root growth and quality of creeping bentgrass under deficit irrigation. Agron. Abr. p. 93989. |
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Last checked: 11/20/2015 |
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