Agriculture Reference
In-Depth Information
F
PL
B
BB
Spur
Graft union
Year 1
Year 2
Year 3
Spur
Flower cluster
Figure 6.1
Development of an apple tree and diagrammatic representation of a spur and a blossom cluster. Year 1 shows a
newly planted unbranched 'whip' with lateral buds on the shoot above the graft union. Pruning the top of this results in lateral
branch development in year 2 and year 3. Planting a well-branched tree in year 1 shortens the timescale to produce a
cropping tree. 'Spur' shows a short shoot or spur in winter. 'Flower cluster,' a flower cluster developed on a spur. BB, a bourse
bud; B,a bourse; PL,a
primary leaf; F,a flower.
