Promotion of flowering in conifers: from the simple application of a mixture of gibberellins to more integrated explanations

Use of soft X-radiography for early non-destructive detection of floral differentiation in Douglas fir buds (Pseudotsuga menziesii (Mirb) Franco)

“…To increase the likelihood of obtaining enhanced cone-bud production, potted 5-year-old grafts of Douglas fir (Pseudotsuga menziesii) were submitted to different flower-inducing treatments (Bonnet-Masimbert, 1987, 1989 …”