Fig. 9
From: Improving soil water dynamics and crop productivity through conservation tillage in arid regions

A path analysis of treatment effects on kernel number per plant (KNP), 100-kernel weight (KW), ET and grain yield (GY). The number near the arrow indicates the standardized path coefficient. The thickness of the line indicates the size of the coefficient. The thicker the line, the larger the path coefficient. The red line, blue line and dotted line represent the positive, negative and nonsignificant path coefficient, respectively(*P < 0.05, **P < 0.01, ***P < 0.001 ). (a) for the cultivation of winter wheat and (b) for the cultivation of spring maize.