Comparing Relationships among Yield and Its Related Traits in Mycorrhizal and Nonmycorrhizal Inoculated Wheat Cultivars under Different Water Regimes Using Multivariate Statistics

Table 4

Path coefficient (direct and indirect effects) of the measured variables attributed on grain yield variation of wheat in noninoculation condition and different water levels.

Variables	Effects via											Direct effect	Indirect effect	Y
	X1	X2	X3	X4	X5	X6	X7	X8	X9	X10	X11
X1	−0.004	−0.003	0.000	0.503	0.018	−0.03	−0.006	−0.017	−0.019	0.01	0.01	−0.004	0.471	0.467
X2	−0.002	−0.004	0.000	0.495	0.018	−0.026	−0.004	−0.013	−0.019	0.009	0.007	−0.004	0.469	0.465
X3	−0.002	−0.002	0.001	0.641	0.019	−0.028	−0.006	−0.012	−0.018	0.009	0.013	0.001	0.620	0.621
X4	−0.002	−0.002	0.000	1.013	0.018	−0.037	−0.005	−0.012	−0.019	0.012	0.018	1.013	−0.02	0.993
X5	−0.002	−0.003	0.000	0.576	0.032	−0.041	−0.004	−0.015	−0.02	0.01	0.016	0.032	0.522	0.554
X6	−0.002	−0.002	0.000	0.567	0.02	−0.067	−0.003	−0.008	−0.015	0.01	0.02	−0.067	0.591	0.524
X7	−0.003	−0.002	0.000	0.579	0.016	−0.026	−0.008	−0.015	−0.015	0.012	0.013	−0.008	0.563	0.555
X8	−0.003	−0.002	0.000	0.54	0.021	−0.023	−0.006	−0.023	−0.021	0.009	0.011	−0.023	0.532	0.509
X9	−0.003	−0.003	0.000	0.727	0.023	−0.036	−0.005	−0.017	−0.027	0.011	0.013	−0.027	0.716	0.689
X10	−0.002	−0.002	0.000	0.616	0.017	−0.034	−0.005	−0.011	−0.015	0.020	0.013	0.020	0.581	0.601
X11	−0.002	−0.001	0.000	0.673	0.018	−0.048	−0.004	−0.01	−0.014	0.009	0.028	0.028	0.626	0.654

X1: tiller numbers/plant, X2: spike length, X3: spikelets/spike, X4: spike weight/plant, X5: grains/spike, X6: grain weight/spike, X7: 100-grain weight, X8: total chlorophyll content of flag leaf, X9: biological yield/plant, X10: root weight, and X11: leaves area.