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Sir Douglas
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Matures early to mid-season
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Shows intermediate cropping efficiency
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Upright growth habit
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Medium to strong tree vigour
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Fruit size medium to large, averaging 9 grams; 77% of fruit sampled had a diameter greater than 25 millimetres
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Fruit is cordate shaped
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Fruit skin and flesh colour is mahogany
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Eating quality of the fruit is fair to good (sugars 19%, acid 3.6)
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Fruit are firm and slightly susceptible to cracking in an average rainfall year (3.5% cracks)
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Fruit stalk length is 30–40mm
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Stone size is intermediate, 10–15 mm long
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The variety is self-fertile
