Table 1 Trait designations and descriptions collected manually and by ARIA
From: Genome-wide association analysis of seedling root development in maize (Zea mays L.)
| Trait name | Symbol | Trait description |
|---|---|---|
| Total Root Length | TRL | Cumulative length of all the roots in centimeters |
| Primary Root Length | PRL | Length of the Primary root in centimeters |
| Secondary Root Length | SEL | Cumulative length of all secondary roots in centimeters |
| Center of Point | COP | Absolute center of the root regardless of root length |
| Maximum Number of Roots | MNR | The 84th percentile value of the sum of every row |
| Perimeter | PER | Total number of network pixels connected to a background pixel |
| Depth | DEP | The maximum vertical distance reached by the root system |
| Width | WID | The maximum horizontal width of the whole RSA |
| Width/Depth ratio | WDR | The ratio of the maximum width to depth |
| Median | MED | The median number of roots at all Y-location |
| Total Number of Roots | TNR | Total number of roots |
| Convex Area | CVA | The area of the convex hull that encloses the entire root image |
| Network Area | NWA | The number of pixels that are connected in the skeletonized image |
| Bushiness | BSH | The ratio of the maximum to the median number of roots |
| Length Distribution | LED | The ratio of TRL in the upper one-third of the root to the TRL |
| Diameter | DIA | Diameter of the primary root |
| Surface Area | SUA | Surface area of the entire root system |
| Standard Root Length | SRL | Total root length divided by root volume |
| Shoot Length | SHL | Total Length of the shoot to the longest leaf tip in cm |
| Shoot Dry weight | SDW | Total dry weight of only the plant shoot |
| Root Dry Weight | RDW | Total dry weight of only the plant roots |
| Total Plant Biomass | TPB | Root dry weight and Shoot dry weight added together |
