Fig. 1.
Fig. 1.

The Akaike information criterion (AIC) difference between the diploid model and the tetraploid models assuming double reduction values from 0 to 0.25. The AIC values were obtained from ASReml 3.0.

 


Fig. 2.
Fig. 2.

The estimated narrow-sense heritability for firmness assuming disomic inheritance and tetrasomic inheritance with increasing coefficients of double reduction.

 


Fig. 3.
Fig. 3.

Correlation of breeding values for firmness estimated assuming disomic and tetrasomic inheritance with w = 0.15.

 


Fig. 4.
Fig. 4.

In order from left to right, pedigree depths of 5, 10, 20, and 30 yr and their influence on the estimated amount of double reduction for each trait.