Mineral in Fruit of Feijoa
The most notable feature of the mineral nutrition of developing feijoa fruit was that the calcium, magnesium and potassium content of the fruit continued to increase until the fruit fell from the tree.
Although it is usually for the potassium content of fruit to increase with growth, the movement of calcium and magnesium into fruit often ceases at a comparatively early stage of fruit growth.
Because calcium is relatively immobile in the phloem, and is conducted to developing fruit via the xylem it has been suggested that calcium movement into fruit it reduced when the xylem ceases to become the main channel for nutrient flow into fruit.
Although this phenomenon may occur in many fruit trees, calcium and other nutrients may be supplied to feijoa fruit during its final growth phase by the xylem.
Mineral in Fruit of Feijoa
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