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Response of Eucalyptus nitens seedlings to gibberellin biosynthesis inhibitors

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Abstract

The plant growth regulators (PGRs) paclobutrazol, chlormequat chloride and prohexadione where applied to 11 month old seedling of Eucalyptus nitens to examine their relative effects on precocious flowering, growth and levels of GA20 and GA1 in the shoot apex. Paclobutrazol was most effective in reducing growth and levels of GA20 and GA1 in the seedlings followed by chlormequat chloride with prohexadione being least effective. Paclobutrazol and chlormequat chloride reduced both GA20 and GA1 levels by similar degrees, but prohexadione reduced GA1 levels considerably more than GA20 levels. None of these PGRs was effective in promoting precocious flowering. This suggests that there is an extra level of reproductive control operating in juveniles of this species compared to those of the closely related species E. globulus previously found to flower precociously in response to similar paclobutrazol treatments.

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References

  1. Curry EA and Reed AN (1989) Transitory growth control of apple seedlings with less persistent triazole derivatives. J Plant Growth Regul 8: 167–174

    Google Scholar 

  2. Davis TD and Andersen AS (1989) Growth retardants as aids in adapting new floricultural crops to pot culture. Acta Hort 252: 77–85

    Google Scholar 

  3. Davis TD and Curry EA (1991) Chemical regulation of vegetative growth. Crit Rev in Plant Sci 10: 151–188

    Google Scholar 

  4. Eldridge K, Davidson J, Harwood C and Van Wyk G (1993) Eucalypt Domestication and Breeding. Oxford: Clarendon Press

    Google Scholar 

  5. Graebe JE (1987) Gibberellin biosynthesis and control. Ann Rev Plant Physiol 38: 419–465

    Google Scholar 

  6. Griffin AR, Whiteman P, Rudge T, Burgess IP and Moncur M (1993) Effect of paclobutrazol on flower-bud production and vegetative growth in two species of Eucalyptus. Can J For Res 23: 640–647

    Google Scholar 

  7. Griggs DL, Hedden P, Temple-Smith KE and Rademacher W (1991) Inhibition of gibberellin 2β-hydroxylases by acylcyclohexanedione derivatives. Phytochemistry 30: 2513–2517

    Google Scholar 

  8. Hamid MM and Williams RR (1997) Effect of different types and concentrations of plant growth retardants on Sturt' desert pea (Swainsona formosa). Sci Hortic 71: 79–85

    Google Scholar 

  9. Hampton JG (1988) Effect of growth retardant soil residues on succeeding agricultural crops. N Z J Exp Agric 16: 167–172

    Google Scholar 

  10. Hasan O, Ridoutt BG, Ross JJ, Davies NW and Reid JB (1994) Identification and quantification of endogenous gibberellins in apical buds and the cambial region of Eucalyptus. Physiol Plant 90: 475–480

    Google Scholar 

  11. Hasan O and Reid JB (1995) Reduction in generation time in Eucalyptus globulus. Plant Growth Regul 17: 53–60

    Google Scholar 

  12. Herbert CD (1982) Growth regulation in cereals - chance or design? In McLaren JS (ed.) Chemical Manipulation of Crop Growth and Development, pp 315–327. London: Butterworth Scientific

    Google Scholar 

  13. Hetherington S and Jones KM (1990) Effectiveness of paclobutrazol in retarding growth of Eucalyptus globulus seedlings. Can J For Res 20: 1811–1813

    Google Scholar 

  14. Jackson MJ, Line MA and Hasan O (1996) Microbial degradation of a recalcitrant plant growth retardant - paclobutrazol (PP333). Soil Biol & Biochem 28: 1265–1267

    Google Scholar 

  15. Junttila O (1993) Interaction of growth retardants, daylength, and gibberellins A19, A20 and A1 on shoot elongation in Birch and Alder. J Plant Growth Regul 12: 123–127

    Google Scholar 

  16. Junttila O, Jensen E and Ernstsen A (1991) Effects of prohexadione (BX-112) and gibberellins on shoot growth in seedlings of Salix pentandra. Physiol Plant 83: 17–21

    Google Scholar 

  17. Leaver BG (1986) 'Cultar' - A technical overview. Acta Hort 179: 459–466

    Google Scholar 

  18. Matysek RG (1995) Plant Hormones in Eucalyptus globulus and Eucalyptus nitens. Unpublished Hons thesis University of Tasmania, Hobart, Australia

  19. Moncur MW and Hasan O (1994) Floral induction in Eucalyptus nitens. Tree Physiol 14: 1303–1312

    Google Scholar 

  20. Nakayama I, Miyazawa T, Kobayashi M, Kamiya, Y and Sakurai A (1990) Effects of a new plant growth regulator prohexadione calcium (BX-112) on shoot elongation caused by exogenously applied gibberellins in rice (Oryza sativa L.) seedlings. Plant Cell Physiol 31: 195–200

    Google Scholar 

  21. Rademacher W, Temple-Smith KE, Griggs DL and Hedden P (1992) The mode of action of acylcyclohexanediones - a new type of growth retardant. In: Karssen CM, van Loon LC and Vreugdenhil D (eds) Progress in Plant Growth Regulation, pp 571–577 Dordrecht: Kluwer Academic Publishing

    Google Scholar 

  22. SAS Institute (1992) SAS Technical Report P-229 SAS/STAT Software: Changes and Enhancements Release 6.07. Cary NC, SAS Institute

    Google Scholar 

  23. Wang Q, Little CHA, Moritz T and Odén PC (1995) Effects of prohexadione on cambial and longitudinal growth and the levels of endogenous gibberellins A1, A3, A4 and A9 and indole-3-acetic acid in Pinus sylvestris shoots. J Plant Growth Regul 14: 175–181

    Google Scholar 

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Authors and Affiliations

  1. Cooperative Research Centre for Sustainable Production Forestry, School of Plant Science, University of Tasmania, GPO Box 252-55, Hobart, Tasmania, 7001, Australia (Author for correspondence)

    D.R. Williams, J.B. Reid & B.M. Potts

  2. School of Plant Science, University of Tasmania, GPO Box 252-55, Hobart, Tasmania, 7001, Australia

    J.J. Ross

Authors
  1. D.R. Williams
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  2. J.J. Ross
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  3. J.B. Reid
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  4. B.M. Potts
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Williams, D., Ross, J., Reid, J. et al. Response of Eucalyptus nitens seedlings to gibberellin biosynthesis inhibitors. Plant Growth Regulation 27, 125–129 (1999). https://doi.org/10.1023/A:1006176928861

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  • DOI: https://doi.org/10.1023/A:1006176928861

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