Table 5.
The relationship between seed yield (SY) and aboveground dry weight (ADW), number of flowers (FN), number of filled pods (FP), number of seeds (SN), seed size (SS, mean seed weight), percentage flower abortion (PFA), and percentage of abscised pods (PAP) in the well-watered and water-stressed treatments.
| Linear relationship for well-watered | Linear relationship for water-stressed | |
|---|---|---|
| Aboveground dry weight (ADW) | SY = −0.475 + 0.338 ADW R2 = 0.82*** |
SY = −0.650 + 0.123 ADW R2 = 0.43*** |
| Number of flowers (FN) | SY = 14.243 + 0.0541 FN R2 = 0.33*** |
R2 = 0.09 ns |
| Number of filled pods (FP) | SY = 3.704 + 0.195 FP R2 = 0.78*** |
SY = −0.675 + 0.180 FP R2 = 0.90*** |
| Number of seeds (SN) | SY = 6.122 + 0.130 SN R2 = 0.80*** |
SY = −0.515 + 0.1443 SN R2 = 0.89*** |
| Seed size (SS) | R2 = 0.01 ns | SY = −3.434 + 63.471 SS R2 = 0.43*** |
| Percentage flower abortion (PFA) | R2 = 0.06 ns | SY = 11.35 – 0.121 PFA R2 = 0.24** |
| Percentage of abscised pods (PAP) | R2 = 0.02 ns | SY = 9.145 – 0.138 PAP R2 = 0.42*** |
The equations are the fitted linear regression with the correlation coefficients. The red font represents negative correlations.
**
P < 0.01;
***
P < 0.001; ns, no significant difference.