Table 2.
On-panicle rice grain phenotyping traits evaluated in this study.
| Type | Traits | Abbreviation | Mean ± SD | Unit |
|---|---|---|---|---|
| Quantity trait | Grain number | GN | 109.450 ± 48.782 | – |
| Size trait | Mean value of grain length | MGL | 8.607 ± 0.697 | mm |
| Standard deviation of grain length | SGL | 0.589 ± 0.156 | mm | |
| Mean value of grain width | MGW | 2.770 ± 0.139 | mm | |
| Standard deviation of grain width | SGW | 0.248 ± 0.052 | mm | |
| Mean value of grain projection area | MGPA | 18.140 ± 1.307 | mm2 | |
| Standard deviation of grain projection area | SGPA | 1.875 ± 0.332 | mm2 | |
| Mean value of grain perimeter | MGP | 21.313 ± 1.481 | mm | |
| Standard deviation of grain perimeter | SGP | 1.386 ± 0.412 | mm | |
| Morphology trait | Mean value of grain area/perimeter ratio | MGAPR | 0.851 ± 0.037 | – |
| Standard deviation of grain area/perimeter ratio | SGAPR | 0.070 ± 0.011 | – | |
| Mean value of grain circularity | MGC | 0.507 ± 0.048 | – | |
| Standard deviation of grain circularity | SGC | 0.048 ± 0.007 | – | |
| Mean value of grain length/width ratio | MGLWR | 3.148 ± 0.340 | – | |
| Standard deviation of grain length/width ratio | SGLWR | 0.377 ± 0.100 | – |
Symbol "-" indicates that the parameter has no units.