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| DOI: | 10.21273/HORTSCI.40.3.836 |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/40/3/article-p836.xml?rskey=o9iGh4
Last checked: 11/20/2019
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | McCullough, Patrick E.;
Liu, Haibo;
McCarty, Lambert B. |
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| Author Affiliation: | McCullough: Program Associate, Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey; Liu: Associate Professor; McCarty: Professor, Department of Horticulture, Clemson University, Clemson, South Carolina |
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| Title: | Response of creeping bentgrass to nitrogen and ethephon |
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| Section: | Turf management
Other records with the "Turf management" Section
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| Source: | HortScience. Vol. 40, No. 3, June 2005, p. 836-838. |
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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: Agrostis stolonifera; Nitrogen; Ethephon; Growth regulators; Application rates; Root growth; Nitrogen fertility; Phytotoxicity
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| Abstract/Contents: | "Ethephon is an effective growth retardant for suppressing Poa annua (L.) seedheads in creeping bentgrass putting greens; however, ethylene induction may cause bentgrass leaf chlorosis, reduced rooting, and quality decline. Two greenhouse experiments investigated the effects of nitrogen (N) fertility and ethephon applications on 'L-93' creeping bentgrass over 9 weeks. Ethephon was applied at 0, 3.8, and 7.6 kg路ha-1 a.i. per 3 weeks and N was applied at 4 and 8 kg路ha-1路week-1. Ethephon applications linearly reduced bentgrass quality on every weekly observation. Increased N rate to 8 kg路ha-1 路week-1 improved turf quality about 10% to 20% and 10% to 30% from ethephon applied at 3.8 and 7.6 kg路ha-1 per 3 weeks, respectively. Increased N rate to 8 kg路ha-1路week-1 enhanced shoot growth 30% but reduced root mass and length 12% and 11%, respectively. After 9 weeks, ethephon reduced root length by about 30% and root mass about 35% at both rates. From nine weekly samples, ethephon reduced dry clipping yield 10% and 16% at 3.8 and 7.6 kg路ha-1 per 3 weeks, respectively. From 2 to 9 weeks after initial treatments, ethephon linearly increased leaf water content. Increasing N fertility effectively reduced bentgrass leaf chlorosis from ethephon; however, repeat applications of ethephon and increased N may restrict bentgrass root growth." |
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| Language: | English |
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| References: | 18 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., H. Liu, and L. B. McCarty. 2005. Response of creeping bentgrass to nitrogen and ethephon. HortScience. 40(3):p. 836-838. |
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| DOI: 10.21273/HORTSCI.40.3.836 |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/40/3/article-p836.xml?rskey=o9iGh4
Last checked: 11/20/2019
Requires: PDF Reader |
| 
MSU catalog number: SB 1 .H64 |
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