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Information sourced from www.rirdc.gov.au

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pollination services

    Citrus

Below is an extract from a pollination research paper prepared by the Rural Industries Research and Development Corporation (RIRDC).  To download the document, simply click on the image on the left of this screen.

Some have suggested as citrus flowers have both male and female parts on the same flower (complete or perfect flowers) that they will generally pollinate themselves and produce fruit (i.e. they are self-compatible and self-fruitful).  There are, however, a few special cases with tangelo and tangerines where a pollinator is required for good fruit set.  Citrus trees produce an abundance of flowers.  Citrus has a natural tendency to drop its fruit, and most of the fruit set at bloom will not hold on until maturity.  A good crop may be borne if only 3-7% of the flowers that are set yield mature fruit.

Several studies have shown increased fruit set and resultant production when using managed honey bee colonies for pollination services (Sanford 2003).  Butcher (1960) found that honey bee foraging on Minneola tangelo increased fruit set, with optimal fruit set occurring at 60-90m from a group of honey bee colonies.

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