Full TGIF Record # 40226
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Web URL(s):http://www.tandfonline.com/doi/abs/10.1300/J099v02n02_02#.Uq8w0fRDvh4
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Publication Type:
i
Report
Author(s):Marcum, K. B.; Jiang, Hongfei
Author Affiliation:Marcum: Department of Plant Sciences, University of Arizona, Tucson, AZ; Jiang: Department of Horticulture, Kansas State University, Manhattan, KS
Title:Effects of plant growth regulators on tall fescue rooting and water use
Source:Journal of Turfgrass Management. Vol. 2, No. 2, 1997, p. 13-27.
# of Pages:15
Publishing Information:Binghamton, NY: Food Products Press (Haworth Press)
Keywords:TIC Keywords: Rooting; Mefluidide; Paclobutrazol; Trinexapac-ethyl; Evapotranspiration rate; Festuca arundinacea; Growth regulators; Root depth; Root length; Density; Evapotranspiration; Water stress
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."
Language:English
References:23
Note:Tables
See Also:Other items relating to: P G Rs 1997-2006
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
    Last checked: Item not verified
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
    Notes: Abstract and Guide page only
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MSU catalog number: SB 433 .J68
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