Boron deficiency causes the death of the terminal growing point. The tree loses its apical dominance and sends out multiple shoots.
Made worst by
Sandy soils. Alkaline soils. Soils low in organic matter. High levels of nitrogen. High levels of calcium. Cold wet weather. Periods of drought.
More uniform and vigorous vegetative growth. Leaves are properly formed and premature drop is avoided. Fruit set and development is improved. Fruit quality (juice/sugar levels) enhanced. Fruit/rind ratio improved. Yield increased.
Boron deficiency on shoots