Road pavement tends to deteriorate slowly at first; its rate of deterioration accelerates over time.
Four of these accessions regularly showed a slow or very slow rate of deterioration; while the other four accessions always deteriorated rapidly or very rapidly (Table 1).
Accessions with very slow, slow, and intermediate rates of deterioration are described in the subsequent text as slow deteriorating (or having a slow rate of deterioration), while those with rapid and very rapid rates of deterioration are subsequently described as rapid deteriorating (or having a rapid rate of deterioration).
The item deteriorates at a time-varying rate of deterioration (theta (t)), where (0 < theta (t) < 1).
Eruption deteriorated faster (AUDePS = 269) than other parents with the slow rate of deterioration (AUDePS from 84 to 154), but slower than parents with the rapid rate of deterioration (AUDePS from 310 to 446) (Table 3).
However, because the rate of deterioration seen in cv.
Parade showed a significantly (p < 0.001) slower rate of deterioration (lower AUDePS scores) than cv.
Broad sense heritability for the rate of deterioration was 0.62 (experiment 1) and 0.61 (experiment 2).
As a result, the rate of deterioration can potentially be manipulated through selective breeding.
Heritability for the rate of deterioration was calculated from AUDePS scores in two ways.
Broad sense heritability (H2) for the rate of deterioration ranged from 0.64 to 0.90.
