0.00
0.04
0.08
0.12
0.16
0
10
20
30
40
Number of B
3
Families
Effect of B
3
Family Size on Inbreeding
Two Trees per
B
3
Family
One Tree per
B
3
Family
Backcrossing
One can select more than one individual per B
3
family
without increasing inbreeding under open pollination
effect due to firstcousins between crossing blocks instead of sibs; gets reversed at 1 cb