Alternatives to phosphonates for fruit colouration - SUNRED
Pre-harvest sprays of SUNRED increased +12.2% the percentage of premium coloured fruit (>75% red) in Klein-Altendorf, Germany, 2014
13 December 2015
Summary
- +12.2% premium coloured fruit >75% red
Link to paper: https://doi.org/10.1016/j.scienta.2015.12.019
Materials and Methods
Campus Klein-Altendorf of the University of Bonn, Germany.
Three rows of four-year-old apple cv.Braeburn trees on M9 rootstock.
Tree spacing 1.0 m × 3.5 m, north–south orientation.
Slender spindles with an open crown and good light penetration into the canopy.
Standard
Timing
Pre-harvest
Foliar
Untreated control
Treated - SUNRED
Timing
Pre-harvest
Foliar
SUNRED® 3.5 L/ha
2 applications:
4 weeks before harvest
2 weeks before harvest
*Note - commercial SUNRED rates and timings in Australia differ to this
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