TABLE 3.
Correlation (R) among: Nodule biomass, symbiotic performance, aerial plant biomass and grain yield.
| Parameters |
R value and significance level |
||
| Year 2017 | Year 2018 | ||
| Dry nodule biomass (mg/plant) | Number of nodules per plant | 0.342ns | 0.222ns |
| Ndfa (%) | 0.753∗∗∗ | 0.645∗∗∗ | |
| N – fixed (kg/ha) | 0.619∗∗∗ | 0.627∗∗∗ | |
| Soil N uptake (kg/ha) | −0.024ns | 0.190ns | |
| Dry aerial biomass (kg/ha) | 0.534∗∗ | 0.433∗ | |
| Grain yield (air-dried)1 (kg/ha) | 0.499∗ | 0.420∗ | |
| Ndfa (%) | N – fixed (kg/ha) | 0.730∗∗∗ | 0.809∗∗∗ |
| Soil N uptake (kg/ha) | −0.163ns | 0.052ns | |
| Dry aerial biomass (kg/ha) | 0.473∗ | 0.432∗ | |
| Grain yield (air-dried)1 (kg/ha) | 0.506∗ | 0.363ns | |
| N – fixed (kg/ha) | Soil N uptake (kg/ha) | 0.541∗∗ | 0.622∗∗∗ |
| Dry aerial biomass (kg/ha) | 0.877∗∗∗ | 0.800∗∗∗ | |
| Grain yield (air-dried)1 (kg/ha) | 0.833∗∗∗ | 0.701∗∗∗ | |
Significance levels: ∗∗∗p ≤ 0.001; ∗∗0.001 < p ≤ 0.01; ∗0.01 < p ≤ 0.05; ns, not significant.