Climate change and Australian wheat yield

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We believe that Nicholls's conclusion1 — that reduced frost frequency has been predominantly responsible for 30-50% of the 45% increase in average Australian wheat yield between 1952 and 1992 — is not correct.

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  1. 1

    Nicholls, N. Nature 387, 484–485 (1997).

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    Rimmington, G. M. & Nicholls, N. Aust. J. Agric. Res. 44, 625–632 (1993).

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    Stone, R., Nicholls, N. & Hammer, G. J. Climate 9, 1896–1909 (1996).

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    Lavery,, Joung, G. & Nicholls, N. Aust. Meteorol. Mag. 46, 27–38 (1997).

  5. 5

    Hamblin, A. and Kyneur, G. Trends in Wheat Yields and Soil Fertility in Australia (Aust. Govt. Publ. Serv., Canberra, 1993).

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