Relative break force values (scores 1–4) of the preferred species used to construct SPs (including the control <i>Beilschmiedia ugandensis</i>); total N = 441 tested breaks and generated RBF values.

Relative break force values (scores 1–4) of the preferred species used to construct SPs (including the control Beilschmiedia ugandensis); total N = 441 tested breaks and generated RBF values.用于构建SPs的优选受试树种（含对照种乌干达琼楠（Beilschmiedia ugandensis））的相对断裂力数值（评分范围1~4）；总样本量N=441，涵盖所有经测试的断裂试样，并生成了相对断裂力（Relative Break Force，RBF）数值。