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| Web URL(s): | http://www.tandfonline.com/doi/abs/10.1300/J099v02n02_02#.Uq8w0fRDvh4
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| Publication Type:
| Report |
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| Author(s): | Marcum, K. B.;
Jiang, Hongfei |
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| Author Affiliation: | Marcum: Department of Plant Sciences, University of Arizona, Tucson, AZ; Jiang: Department of Horticulture, Kansas State University, Manhattan, KS |
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| Title: | Effects of plant growth regulators on tall fescue rooting and water use |
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| Source: | Journal of Turfgrass Management. Vol. 2, No. 2, 1997, p. 13-27. |
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| Publishing Information: | Binghamton, NY: Food Products Press (Haworth Press) |
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| # of Pages: | 15 |
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| Keywords: | TIC Keywords: Rooting; Mefluidide; Paclobutrazol; Trinexapac-ethyl; Evapotranspiration rate; Festuca arundinacea; Growth regulators; Root depth; Root length; Density; Evapotranspiration; Water stress
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| Abstract/Contents: | "Experiments were conducted in a glasshouse to investigate the effects of plant growth regulators (PGRs) mefluidide [N-(2,4-dimethyl-5[[(trifluromethyl)-sulfonyl]amino]phenyl] acetamide)], paclobutrazol [(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-1,2,4- triazol-1-yl-)pentan-3-ol], trinexapac-ethyl (4-(cyclopropyl-α-hydroxy-methylene)-3,5-dioxo- cyclohexanecarboxylic acid methylester), and ethephon [2-chloroethl) phosphonic acid] on 'Kentucky 31' (K-31) tall fescue (Festuca arundinacea Schreb.) rooting characteristics, root water extraction from soil with increasing depth, and evapotranspiration rate. Ethephon had the most detrimental effect of any PGR on maximum rooting depth (MRD), root length density (RLD) with increasing profile depth, total root length (TRL-the sum of root length densities at all depths), and root water extraction from soil. Paclobutrazol decreased MRD, TRL, and RLD at two rooting depths. Trinexapac-ethyl had no effect on MRD, but decreased TRL, and RLD at 10-20 cm depth, in one of two experiments. In contrast, mefluidide had no effect on MRD or TRL, but decreased RLD at 10-20 cm depth in one of two experiments. Mefluidide, ethephon, and trinexapac-ethyl reduced evapotranspiration rate over a 6 week periods, while paclobutrazol had no effect. Though ethephon reduced evapotranspiration, it also resulted in the shortest maximum rooting depths and lowest root length densities of all PGRs, increasing vulnerability to water stress. As expected, all PGRs reduced shoot elongation rate and clipping weight." |
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| Language: | English |
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| References: | 23 |
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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):
Marcum, K. B., and H. Jiang. 1997. Effects of plant growth regulators on tall fescue rooting and water use. J. Turfgrass Manage. 2(2):p. 13-27. |
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| Web URL(s):
http://www.tandfonline.com/doi/abs/10.1300/J099v02n02_02#.Uq8w0fRDvh4
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Notes: Abstract and Guide page only |
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MSU catalog number: SB 433 .J68 |
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