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Table II

Estimated family correlations (with their approximate standard errors given within parenthesis) between different crossing designs for DBH at different ages from planting. The significance probabilities refer to one-tailed likelihood ratio tests applied to test the departure of the correlation estimates from one.

4 years 6 years 10 years
SELF OP SELF OP SELF OP
OP 0.59 0.64 0.99
(±0.19) (±0.19) (±0.17)
P ≤ 0.001 P ≤ 0.001 P > 0.05
POL 0.31 0.14 0.10 0.31 0.39 0.45
(±0.29) (±0.20) (±0.26) (±0.18) (±0.26) (±0.18)
P ≤ 0.001 P ≤ 0.001 P ≤ 0.001 P ≤ 0.001 P ≤ 0.001 P ≤ 0.001