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| DOI: | 10.21273/HORTSCI.33.4.704 |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/33/4/article-p704.xml
Last checked: 11/13/2019
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Bush, Edward W.;
Porter, Wayne C.;
Shepard, Dennis P.;
McCrimmon, James N. |
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| Author Affiliation: | Department of Horticulture, Louisiana State University Agricultural Center, 137 J.C. Miller Hall, Baton Rouge, LA 70803 |
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| Title: | Controlling growth of common carpetgrass using selected plant growth regulators |
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| Section: | Growth regulators
Other records with the "Growth regulators" Section
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| Source: | HortScience. Vol. 33, No. 4, July 1998, p. 704-706. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Axonopus affinis; Growth regulators; Application rates; Trinexapac-ethyl; Mefluidide; Sulfometuron; Sethoxydim; Fluazasulfuron; Comparisons; Phytotoxicity; Quality evaluation; Growth; Mowing; Seedhead inhibition
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| Abstract/Contents: | "Field studies were performed on established carpetgrass (Axonopus affinis Chase) in 1994 and 1995 to evaluate plant growth regulators (PGRs) and application rates. Trinexapac-ethyl (0.48 kg·ha⁻¹) improved turf quality and reduced cumulative vegetative growth (CVG) of unmowed and mowed plots by 38% and 46%, respectively, in 1995 and suppressed seedhead height in unmowed turf by >31% 6 weeks after treatment (WAT) both years. Mefluidide (0.14 and 0.28 kg·ha⁻¹) had little effect on carpetgrass. Sulfometuron resulted in unacceptable phytotoxicity (>20%) 2 WAT in 1994 and 18% phytotoxicity in 1995. In 1995, sulfometuron reduced mowed carpetgrass CVG 21%, seedhead number 47%, seedhead height 36%, clipping yield 24%, and reduced the number of mowings required. It also improved unmowed carpetgrass quality at 6 WAT. Sethoxydim (0.11 kg·ha⁻¹) suppressed seedhead formation by 60% and seedhead height by 20%, and caused moderate phytotoxicity (13%) in 1995. Sethoxydim (0.22 kg·ha⁻¹) was unacceptably phytotoxic (38%) in 1994, but only slightly phytotoxic (7%) in 1995, reduced clipping yields (>24%), and increased quality of mowed carpetgrass in both years. Fluazasulfuron (0.027 and 0.054 kg·ha⁻₁) phytotoxicity rating were unacceptable at 2 WAT in 1994, but not in 1995. Fluazasulfuron (0.054 kg·ha⁻¹) reduced seedhead height by 23% to 26% in both years. Early seedhead formation was suppressed >70% when applied 2 WAT in 1994, and 43% when applied 6 WAT in 1995. The effects of the chemicals varied with mowing treatment and evaluation year." |
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| Language: | English |
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| References: | 12 |
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| See Also: | Other items relating to: P G Rs 1997-2006 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bush, E. W., W. C. Porter, D. P. Shepard, and J. N. McCrimmon. 1998. Controlling growth of common carpetgrass using selected plant growth regulators. HortScience. 33(4):p. 704-706. |
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| DOI: 10.21273/HORTSCI.33.4.704 |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/33/4/article-p704.xml
Last checked: 11/13/2019
Requires: PDF Reader |
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MSU catalog number: SB 1 .H64 |
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