Phenotypic plasticity indexes for both subpopulations calculated from phosphorus uptake (functional trait) and growth rate (performance trait) data.

Each index value represents (phosphorus uptake or growth rate in natural conditions, e.g. AA or VV treatments)–(phosphorus uptake or growth rate when we changed water, e.g. VA or AV treatments)/maximum uptake or growth rate.
Phenotypic plasticity indexes for both subpopulations calculated from phosphorus uptake (functional trait) and growth rate (performance trait) data.

各指数的计算公式为：（自然条件下的磷吸收量（phosphorus uptake）或生长速率，例如AA、VV处理组）与（换水处理下的磷吸收量或生长速率，例如VA、AV处理组）的差值，除以最大吸收量或最大生长速率。
基于磷吸收量（功能性状（functional trait））与生长速率（表现性状（performance trait））的实验数据，可计算得到两个亚种群的表型可塑性（phenotypic plasticity）指数。