Full TGIF Record # 14634
Item 1 of 1
Web URL(s):http://www.newss.org/proceedings/proceedings_1989_vol43.pdf#page=100
    Last checked: 07/25/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
Publication Type:
i
Report
Author(s):Duell, R. W.; Smith, D. A.; Farrell, A. I.
Author Affiliation:Assoc. Res. Prof., Research Tech. and Research Asst., N.J. Agri. Expt. Station
Title:PGRs x Turfgrass Cultivars 1988.
Source:Proceedings of the 43rd Annual Meeting of the Northeastern Weed Science Society. Vol. 43, 1989, p. 100-101.
Publishing Information:Ithaca, NY: Northeastern Weed Science Society
# of Pages:2
Keywords:TIC Keywords: Growth regulators; Poa pratensis; Festuca arundinacea; Lolium; Mefluidide
Abstract/Contents:"Five PGRs were applied in 3 replicates to 18 month-old turfgrass cultivars that had been manitained as industrial quality turf. Differential spring green-up was noted among the 18 cultivars. The 26th of April was chosen as the comprimise date for treatment at which time dormancy was overcome but seed stalk development would not be too far advanced. Half of each plot was trim-mowed 20 days after treatment (DAT). Mefluidide caused more discoloration of the 4 Kentucky bluegrass (KB) (Poa pratensis L.) cultivars than other PGRs, 20 DAT. See attached data. Tall fescues (TF) (Festuca arundinacea Schreb.) were growing more rapidly, and 6 cultivars of this species were discolored much less. The 2 ryegrasses (Lolium perenne L.) and 6 fine fescues (Festuca spp.) were intermediate in degree of discoloration by PGRs. ACP-2110 was the best chemical on 'Palmer' ryegrass, but caused notable discoloration in 'Repell' ryegrass and 'Banner' Chewings fescue. Mefluidide at the recommended rate, or at 1/3 rate plus a 1/3 rate of 2110 caused minimal discoloration in 1 of 2 sheeps fescues and 2 hard fescue cultivars. At 51 DAT, "rebound", particularly color improvement of KB cultivars treated with mefluidide, became apparent. Mefludide-treated fine fescues generally had better color than untreated checks. 'Troy' KB was further advanced at time of treatment, and seedheads were not controlled weel by any PGR, but mefluidide controlled all others. ACP 2110 was least effective in controlling seedheads. At 1/3 rates of these 2 PGRs, combined control of seedheads was acceptable for the 3 turf type cultivars of Kentucky bluegrass. All PGRs provided good seedhead control of TF cultivars with the exception of marginal control of KY31 by amichlor. Eptam and amidochlor controlled seedheads of both ryegrasses and 'Fortress' spreading fescue, but not Banner chewings fescue. Seedheads of early-flowering 'Reliant', 'Spartan' hard fescues and 'Bighorn' sheeps fescue were not controlled well by any of the PGRs. Seedhead height generally parallelled seedhead count. Many of the hard and sheep fescue seedheads were so short as to escape mowing, but tall enough to appear unsightly after mowing. An earlier application date for the fine fescues and Troy KB might have resulted in acceptable control of seedheads. Amichlor controlled seedheads and foliar growth better this season because of greater than normal rainfall following treatment. Several suggestions of synergism appear throughout the data with 1/3 rates of mefluidide plus ACP 2110. Ratios of these PGRs should be further researched, over an array of cultivars of various species."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Duell, R. W., D. A. Smith, and A. I. Farrell. 1989. PGRs x Turfgrass Cultivars 1988.. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 43:p. 100-101.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=14634
If there are problems with this record, send us feedback about record 14634.
Choices for finding the above item:
Web URL(s):
http://www.newss.org/proceedings/proceedings_1989_vol43.pdf#page=100
    Last checked: 07/25/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
Find Item @ MSU
MSU catalog number: SB 610 .N62
Find from within TIC:
   Digitally in TIC by file name: newss1989
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)