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Andrew G. Reynolds, A.C. Cottrell, D.A. Wardle, and A.P. Gaunce

Section. Summerland Research Station contribution no. 772. The gifts of paclobutrazol from Bill Moons of Chipman, Inc., and of dichlobutrazol from ICI Americas, Inc., are gratefully acknowledged. The cost of publishing this paper was defrayed in

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Rebecca A. Schnelle and James E. Barrett

achieve the accepted product form for retail sales in 4- to 5-inch-diameter containers. Paclobutrazol is a widely used plant growth regulator for size control of commercially produced ornamental crops such as bedding plants, bulb crops, herbaceous

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Alicain S. Carlson, John M. Dole, and Brian E. Whipker

control growth of pineapple lily, but Filios and Miller (2013) found paclobutrazol (4.0 and 8.0 mg/pot) and flurprimidol (2.0 mg/pot) to be effective in controlling height of ‘Innocence’ and ‘Tugela Ruby’ pineapple lily ( Eucomis comosa ). Substrate

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Amir Rezazadeh and Richard L. Harkess

( Rademacher, 2000 ). Several growth retardants are currently recommended for controlling height of floriculture crops. Triazoles, including uniconazole and paclobutrazol, are one of the largest commercially used groups of PGRs to control plant height and

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Haijun Zhu and Eric T. Stafne

Due to the strong vegetative nature of relatively young pecan trees and the absence of dwarfing rootstocks or cultivars, controlling tree size is a major problem in high-density pecan orchards. Paclobutrazol, an effective inhibitor of gibberellin

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Christopher J. Currey, Kellie J. Walters, and Kenneth G. McCabe

chloride, chlormequat chloride and daminozide, ethephon, paclobutrazol, and uniconazole ( Barrett and Schoellhorn, 2001 ; Kamoutsis and Matsoukis, 2003 ; Matsoukis et al., 2004 ; Matsoukis and Chronopoulou-Sereli, 2005 ; Ruter, 1996 ). Applying PGRs

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Amir Rezazadeh, Richard L. Harkess, and Guihong Bi

plants even when the PGRs did not affect plant growth ( Atkinson and Crisp, 1983 ; Conover, 1994 ; Poole and Conover, 1992 ; Ranney et al., 1989 ). Paclobutrazol, a widely used growth retardant, is reported to have antitranspirant effects with a clear

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Huiling Wang, Wei Wang, Weidong Huang, and Haiying Xu

, little was known about the regulation at the protein level. In addition, the relationships between SA and the downstream enzymes of flavonoid biosynthesis such as Vv DFR and Vv ANS have not yet been reported in grapevine. Paclobutrazol can significantly

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Paweł Petelewicz, Paweł M. Orliński, and James H. Baird

to displace it ( Bigelow et al., 2007 ; Turgeon, 2012 ). The most commonly used Class-B PGRs are paclobutrazol [PB (Trimmit 2SC; Syngenta Crop Protection)] and flurprimidol [FP (Cutless MEC; SePRO Corp., Carmel, IN)]. The efficacy of these active

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Joyce G. Latimer and Ronald D. Oetting

Four-week-old salvia (Salvia splendens F. Sellow `Red Pillar') seedlings were treated with 0 or 50 ppm paclobutrazol, followed 5 h later by 0, 1, 2, or 4 times (0×, 1×, 2×, or 4×, respectively) the recommended label rate of bendiocarb (0.6 g a.i./liter), a carbamate insecticide. Seven days after treatment (DAT), phytotoxicity ratings increased with bendiocarb rate on all plants, but 50 ppm paclobutrazol reduced damage at 1× and 4× bendiocarb. Paclobutrazol also improved plant recovery from phytotoxicity damage at 21 DAT. Bendiocarb decreased the height of plants not treated with paclobutrazol at 7, 14, and 21 DAT. Plants treated with 40 ppm paclobutrazol had lower maximum phytotoxicity damage at 14 DAT, and even better recovery at 21 DAT than plants treated with 20 or 60 ppm paclobutrazol. Plants treated with paclobutrazol 4 days before applying bendiocarb had lower maximum phytotoxicity ratings relative to controls than plants treated 8 days before, the same day as, or 4 days after bendiocarb application. Chemical names used: β- [(4-chlorophenyl)methyl]- α -(1,1-dimethylethyl)-1 H- 1,2,4-triazole-1-ethanol (paclobutrazol); 2,2-dimethyl,1,3-benzodioxol-4-yl-methylcarbamate (bendiocarb).