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First picture is a second PIg scion grafted just below tip, stock not cut back, no branch habit. Second picture is a third order scion, grafted just below tip, no branch habit

Side graft of PIg low on rootstock - stock cut back - branching habit of scion remains

Red pine grafted in Pinus sylvestris rootstock - tree surviving because branch of rootstock remains?

Red pine grafted in Pinus sylvestris rootstock - note some dying

Grafting of Larix - low grafts, branch habit persists

High grafting to avoid weeds

Gene for multiple cone production - poor for Christmas tree

Poor tree for Christmas tree, too many cones & open form
(compare to good one next to it), tree is a Pinus sylvestris

First picture is a Douglas fir near Duncan British Columbia aged 60 years. Second picture is Douglas fir stem near Duncan British Columbia

Colour variation in Douglas fir