Official Journal of the Japan Wood Research Society
Table 2 The content of starch and soluble sugar in different parts of F. yunnanensis at different seasons (%)
Age (years) | Portions | January (winter) | May (spring) | August (summer) | November (autumn) | ||||
|---|---|---|---|---|---|---|---|---|---|
Soluble sugar | Starch | Soluble sugar | Starch | Soluble sugar | Starch | Soluble sugar | Starch | ||
1 | Top | 0.284 ± 0.000a | 0.221 ± 0.017b | 0.461 ± 0.002a | 0.000 | 0.589 ± 0.008c | 0.000 | 0.944 ± 0.002b | 0.000 |
Middle | 0.374 ± 0.005b | 0.252 ± 0.029b | 0.491 ± 0.001b | 0.000 | 0.431 ± 0.009b | 0.000 | 0.564 ± 0.002a | 0.000 | |
Bottom | 0.406 ± 0.003c | 0.140 ± 0.012a | 0.526 ± 0.007c | 0.000 | 0.304 ± 0.003a | 0.000 | 0.451 ± 0.001a | 0.000 | |
2 | Top | 0.708 ± 0.001c | 0.269 ± 0.006c | 0.346 ± 0.001a | 0.000 | 0.983 ± 0.001c | 0.000 | 0.724 ± 0.004c | 0.000 |
Middle | 0.681 ± 0.002b | 0.310 ± 0.017b | 0.473 ± 0.007b | 0.000 | 0.737 ± 0.015b | 0.000 | 0.427 ± 0.013b | 0.000 | |
Bottom | 0.539 ± 0.016a | 0.151 ± 0.000a | 0.501 ± 0.010c | 0.000 | 0.634 ± 0.015a | 0.000 | 0.383 ± 0.004a | 0.000 | |
3 | Top | 0.841 ± 0.002b | 0.433 ± 0.002b | 0.354 ± 0.002a | 0.000 | 0.871 ± 0.007c | 0.000 | 0.640 ± 0.012c | 0.000 |
Middle | 0.630 ± 0.004a | 0.214 ± 0.001a | 0.371 ± 0.001ab | 0.000 | 0.617 ± 0.188b | 0.000 | 0.439 ± 0.006b | 0.000 | |
Bottom | 0.682 ± 0.005a | 0.199 ± 0.015a | 0.418 ± 0.005b | 0.000 | 0.650 ± 0.004a | 0.000 | 0.348 ± 0.003a | 0.000 | |