Table 1 General attributes of the breeding populations and trials studied

Total number of trees in trial

2000

960

Total number of open pollinated (OP) families

40

24

Number of blocks

50

40

Number of individuals/OP family

10

32

Number of trees measured

508

747

Number of trees used in the analyses

505

732

Effective population size (N _e ) estimated from LD data

50

35

Age at phenotyping (yr)

4.6

3.5

Site

Candói, PR

Rio Verde, GO

Coordinates

25^o43’00″S/ 52^o11’00″W

25^o36’00″S/ 52^o03’00″W

Number of traits

3

3