Table 3 Percentages of intervals, as partitioned by four methods, corresponding to each root order of seedlings of Pinus tabuliformis.
From: A new method to optimize root order classification based on the diameter interval of fine root
Diameter intervals (mm) | Percentage of root tips (%) | |||||
|---|---|---|---|---|---|---|
1st order | 2nd order | 3rd order | 4th order | 5th order | ||
Probability distribution function interval method | ≤0.495 | 91.2 | 19.7 | 0.5 | ||
0.495–0.777 | 8.8 | 67.1 | 17.3 | |||
0.777–1.069 | 11.7 | 63.1 | 13.1 | |||
1.069–1.506 | 1.5 | 19.1 | 72.4 | 25 | ||
>1.506 | 14.5 | 75 | ||||
Probability distribution function intersection method | ≤0.478 | 84.3 | 14.8 | 0.5 | ||
0.478–0.732 | 15.7 | 61.5 | 2.4 | |||
0.732–1.062 | 22.8 | 75.1 | 46.2 | |||
1.062–1.453 | 0.9 | 22 | 17.9 | |||
>1.453 | 35.9 | 100 | ||||
Normal distribution transformation method | ≤0.474 | 83.2 | 13.6 | 0.5 | ||
0.474–0.753 | 16.8 | 70.9 | 13.4 | |||
0.753–1.084 | 14.2 | 69.7 | 15.2 | |||
1.084–1.486 | 1.3 | 16.4 | 68.3 | 19.8 | ||
>1.486 | 16.5 | 80.2 | ||||
Quartile averaging method | ≤0.486 | 87.9 | 17.7 | 0.5 | ||
0.486–0.768 | 12.1 | 68.6 | 16.4 | |||
0.768–1.088 | 12.5 | 67.2 | 15.9 | |||
1.088–1.484 | 1.2 | 15.9 | 67.5 | 22.5 | ||
>1.484 | 16.6 | 77.5 | ||||
