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Ethanol enhances the effectiveness of ethephon on anthocyanin production in cranberry fruits in the field


, : Ethanol enhances the effectiveness of ethephon on anthocyanin production in cranberry fruits in the field. Hortscience 27(5): 411-412

The application of ethanol for enhancing effectiveness of ethephon under field conditions on cranberry (Vaccinium macrocarpon Ait.) fruit was tested during three seasons (1986 to 1988). The formulation containing ethephon plus the surfactant Tergitol (0.3% or 0.5%, v/v) and ethanol (2.5%, 5%, or 10%) consistently increased anthocyanin content in the fruit by 28% to 54% over the control. In general, fruit size was not affected by the ethephon treatment containing ethanol and Tergitol. The application of ethephon plus surfactant did not increase the anthocyanin content in the fruit. The presence of ethanol in the ethephon and surfactant mixture, however, consistently enhanced the fruit anthocyanin content by 21% to 40% as compared to ethephon plus surfactant. No adverse effect of various treatments of vine growth or appearance was noticed over the three seasons. Chemical name used: (2-chloroethyl) phosphonic acid (ethephon).

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Related references

Farag, K.M.; Palta, J.P., 1992: Ursolic acid, ascorbic acid, or urea together with ethephon accelerate anthocyanin production in cranberry (Vaccinium macrocarpon) fruit. Ethephon has been used to accelerate anthocyanin production in cranberry fruits. However, its field application yielded inconsistent results which led Wisconsin growers to discontinue its use. The possibility was investigated of accelerating antho...

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