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Table 3 Path coefficients between Pn and physiological factors of Liriope muscari grown under high (HI), medium (MI) and low (LI) incident PAR in two groups

From: Photosynthetic performance and growth responses of Liriope muscari (Decne.) L.H. Bailey (Asparagaceae) planted within poplar forests having different canopy densities

TreatmentVariableDirect effectIndirect effectDecision coefficient
E X1GS X2ci/ca X3
HI-1E X10.3910.4340.434− 0.036
 ci/ca X3− 0.665− 0.255− 0.2550.377
Regression equation: Y = 7.603 + 3.583 * X1 − 10.276 * X3
MI-1E X10.418− 0.3390.6830.3430.057
 GS X2− 0.4080.3480.8791.226− 1.338
 ci/ca X3− 0.985− 0.2900.3640.0740.965
Regression equation: Y = 11.581 + 3.854 * X1-0.08 * X2 − 13.086 * X3
LI-1E X10.1610.3690.3250.693− 0.455
 GS X20.4620.1280.3650.493− 0.030
 ci/ca X3− 0.426− 0.123-0.395− 0.518− 0.087
Regression equation: Y = 2.453 + 1.149 * X1 + 0.1 * X2 − 3.029 * X3
HI-2E X11.0620.021− 0.122− 0.1011.118
 GS X20.0240.938− 0.1010.837− 0.699
 ci/ca X30.154− 0.844− 0.016− 0.860− 0.716
Regression equation: Y = − 1.427 + 7.388 * X1 + 0.003 * X2 + 1.726 * X3
MI-2GS X20.5070.3850.3850.109
 ci/ca X3− 0.457− 0.427− 0.4270.026
Regression equation: Y = 2.961 + 0.055 * X2 − 3.454 * X3
LI-2E X10.5450.4120.4120.127
 GS X20.4340.5180.518− 0.080
Regression equation: Y = − 0.224 + 2.677 * X1 + 0.048 * X2