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Evaluation of Trinexapac-ethyl (Moddus®) as a New Chemical Ripener for the South African Sugarcane Industry

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Abstract

Although information from Brazil and Australia indicate that trinexapac-ethyl (Moddus®) is an excellent new sugarcane ripener, there is no information on the response of South African varieties to this chemical. The objective of this investigation was to establish the ripening potential of this chemical in a local variety and to compare responses with current industry standards, 2-chloroethyl phosphonic acid (Ethephon®) and fluazifop-p-butyl (Fusilade Forte®). Evaluation was conducted in an irrigated plant and first ratoon crop of variety N32 at Pongola, South Africa. The field trial was laid out as a complete randomised design with five replicates per treatment. The nine treatments comprised: (a) untreated control, (b) Ethephon® (1.5 L/ha) applied 84 days before harvest (DBH), (c) Fusilade Forte® (0.2 L/ha) applied 43 DBH, (d) Moddus® at three rates (0.8, 1 and 2 L/ha) applied 70 DBH, (e) Ethephon® (1.5 L/ha) and Fusilade Forte® (0.2 L/ha) applied in combination 84 and 43 DBH, and (f) Moddus® (0.8 and 1 L/ha) and Fusilade Forte® (0.2 L/ha) applied in combination 70 and 43 DBH. The various ripener treatments improved estimated recoverable crystal (ERC) yields in the 12-month old crops by between 1.6 and 4.9 t/ha when compared with the control. Moddus® applied at 0.8 and 1 L/ha achieved similar improvements as Fusilade Forte® and Ethephon®, but at 2 L/ha outperformed the latter two ripeners by up to 1.9 t ERC/ha. Best ERC yield responses were achieved in the three combination treatments. However, the Moddus®—Fusilade Forte® combination treatments outperformed the standard Ethephon®—Fusilade Forte® combination treatment by up to 1 t ERC/ha. These results indicate that Moddus® is an effective sugarcane ripener under South African high-potential irrigated conditions and that improved in ERC yields exceeding those obtained with current industry standards might be possible.

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References

  • Alexander, A.G. 1973. Sugarcane physiology. A comprehensive study of the Saccharum source-to-sink system. Amsterdam: Elsevier Scientific Publishing Co.

    Google Scholar 

  • Clowes, M.St.J. 1978. Early and late season chemical ripening of sugarcane. Proceedings of the South African Sugar Cane Technologists Association 52: 160–165.

    CAS  Google Scholar 

  • Di Bella, L.P., C. Rixon, P. Armytage, B. Davies, A.W. Wood, and P. Sheedy. 2007. The 2006 Herbert Moddus® pilot program. Proceedings of the Australian Society of Sugar Cane Technologists 29: 368–376.

    Google Scholar 

  • Donaldson, R.A. 2001. Effects of Fusilade Super and Ethephon as single and tandem treatments on four sugarcane varieties. Proceedings of the International Society of Sugar Cane Technologists 24: 196–198.

    Google Scholar 

  • Donaldson, R.A. 2002. Changes in the components of sugarcane culms from ripening with Fusilade Super. Proceedings of the South African Sugar Cane Technologists Association 76: 106–109.

    Google Scholar 

  • Eastwood, D., and H.D. Davis. 1997. Chemical ripening in Guyana—progress and prospects. Sugar Cane 3: 4–17.

    Google Scholar 

  • Morgan, T., P. Jackson, L. McDonald, and J. Holtum. 2007. Chemical ripeners increase early season sugar content in a range of sugarcane varieties. Australian Journal of Agricultural Research 58: 233–241.

    Article  CAS  Google Scholar 

  • Kingston, G., and C.M. Rixon. 2007. Ripening responses of twelve sugarcane cultivars to Moddus® (trinexapac-ethyl). Proceedings of the Australian Society of Sugar Cane Technologists 29: 328–338.

    Google Scholar 

  • Resende, P.A.P., J.E. Soares, and M. Hudetz. 2000. Moddus®, a plant growth regulator and management tool for sugarcane in Brazil. Sugar Cane International 4: 5–9.

    Google Scholar 

  • Rixon, C.M., L.P. Di Bella, G. Kingston, K. Dorahy, B. Davies, and A.W. Wood. 2007. Moddus®—a sugar enhancer. Proceedings of the Australian Society of Sugar Cane Technologists 29: 318–327.

    Google Scholar 

  • Rostron, H. 1974. Chemical ripening of sugarcane with Ethrel and Polaris. Proceedings of the International Society of Sugar Cane Technologists 15: 953–965.

    Google Scholar 

  • Solomon, S., H.N. Shahi, S.K. Dutta Majumder, I. Singh, and V.K. Madan. 2001. Effect of ethephon on sugarcane growth under sub-tropical climates. Proceedings of the International Society of Sugar Cane Technologists 24: 174–176.

    Google Scholar 

  • Sweet, C.P.M., P.W. White, and G.H. Dodsworth. 1987. Commercial experience with chemical sugarcane ripeners at Simunye sugar estate in Swaziland. Proceedings of the South African Sugar Cane Technologists Association 61: 121–127.

    Google Scholar 

Download references

Acknowledgments

Special thanks to Syngenta South Africa (Pty) Limited for funding this research and for permission to publish the results. Special thanks to the management and technical team staff at the South African Sugarcane Research Institute’s research station in Pongola for provision of land and human resources during the experiments.

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Correspondence to P. D. R. van Heerden.

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van Heerden, P.D.R. Evaluation of Trinexapac-ethyl (Moddus®) as a New Chemical Ripener for the South African Sugarcane Industry. Sugar Tech 16, 295–299 (2014). https://doi.org/10.1007/s12355-013-0278-x

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  • DOI: https://doi.org/10.1007/s12355-013-0278-x

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