TABLE 6.
Morphological and physiological traits | Standardized coefficients | Shoot biomass | Morphological and physiological traits | Standardized coefficients | Root biomass |
Plant height | ns | Root length | ns | ||
Leaf area | 0.438 | 3.6*** | Root surface area | 0.487 | 4.2*** |
Leaf dry weight | ns | Root average diameter | ns | ||
Photosynthetic rate | 0.446 | 3.8*** | Root tip number | 0.409 | 3.5** |
MS regression | 25120.5 | MS regression | 3759.7 | ||
MS residual | 264.1 | MS residual | 35.2 | ||
R2 | 0.718*** | R2 | 0.741*** |
F-values and significance levels are shown for traits with a significant effect. Mean squares for the final regression equations (containing the “significant variables” with standardized coefficients), and proportion of variance explained by the model (R2) are indicated for both biomasses. ns, not significant. **p < 0.01, ***p < 0.001.