Path analysis showing direct and indirect effect of Y1∼Y5 to Z (Psathyrostachys juncea Nevski).

F-values are presented along with statistical differences:*P **P ***P The direct effects of Y1∼Y5 to z are highlighted in bold (on main diagonal cell); Arrows illustrate directions of effects. pye = 0.6117, 0.5556, 0.8949 and 0.5192 for year 2003, 2004, 2005 and 2006, respectively.

本研究一并呈现F值与统计学差异结果：*P、**P、***P。Y₁~Y₅对z的直接效应以粗体标注（位于主对角线单元格中）；箭头用以示意效应的作用方向。2003年、2004年、2005年及2006年对应的pye值分别为0.6117、0.5556、0.8949与0.5192。