Fig 1.
a: Underground stem; b: Creeping stem; c: Seed potato; d: Seminal root; e: Fibrous root; f: Tuber; g: Creeping root.
Fig 2.
Schematic diagram of potato tuber-root topology.
A: Seed potato; B: Underground stem; G: Tuber; G’: Tuber projection; r1: Root 1; r2: Root 2; r1’: Root 1 projection; r2’: Root 2 projection.
Fig 3.
Root geometry diagram.
Fig 4.
Schematic diagram of the main stem geometry.
Table 1.
Characterization parameters of potato tuber-root model.
Fig 5.
Open root system.
Fig 6.
Complete Zaodabai root system.
Fig 7.
Overall structure of potato tuber-root model.
(a) Logical structure; (b) Storage structure.
Fig 8.
Logical structure among rhizomes.
(a)Two level; (b) Four level.
Fig 9.
Storage structure of relationships among rhizomes.
(a) Two level; (b) Four level.
Fig 10.
Structure of single seed root.
(a) Logical structure; (b) Storage structure.
Fig 11.
Root growth direction.
Fig 12.
Root growth trajectory.
Fig 13.
(a) Long potato; (b) Spherical potato; and (c) Ellipsoid potato.
Fig 14.
Different types of organizational structure.
Fig 15.
Flowchart of building models.
Fig 16.
Flow chart of multiple creeping root model construction.
Fig 17.
Visualization of different potato models.
(a) Zaodabai; (b) Helanshiwu; and (c) Fujin.
Table 2.
Simulated and measured root depth.
Fig 18.
Comparison of measured and simulated values of Zaodabai.
Fig 19.
Comparison of measured and simulated values of Helanshiwu.
Fig 20.
Comparison of measured and simulated values of Fujin.
Table 3.
RRMSE results.