Table 1 Different combinations of plastochrone intervals (PIs) with the suggested seagrass architectural outcome. PI-A, PI-L, PI-5 plastochrone intervals for apical, lateral shoots and L-5, respectively
PI Interval | Implication | Value | Architectural outcome |
|---|---|---|---|
PI-A/PI-5 | Would determine the probability of producing a new lateral shoot in the main rhizome | <0.25 | Sporadic (very improbable) |
0.25–0.5 | Occasional (infrequent) | ||
0.5–1.0 | Regular | ||
>1.0 | At every node | ||
PI-L/PI-5 | Would determine the fate of the produced lateral shoots, that is, branching or vertical growth | <0.25 | Vertical shoots, branching very improbable |
0.25–0.5 | Vertical shoots, occasionally branching | ||
0.5–1.0 | Vertical and lateral shoots and regular branching | ||
>1.0 | High probability of branching at every node |