Table 9
Importance of each variable selected by PLS and submitted to the Random Forest model (rank and absolute value of importance between brackets): sunflower.
| Factors | DDM protein concentration (14 variables) | Oil concentration to standards (14 variables) |
|---|---|---|
| Terres Inovia (TI) development regions | 10 (4.7) | 13 (5.3) |
| Soil texture | 6 (8.3) | 4 (14.9) |
| Varietal characteristics | ||
| •Potential DDM protein concentration | 13 (3.1) | |
| •Potential oil concentration to standards | 3 (9.6) | 1 (30.1) |
| •Maturity earliness | 7 (6.3) | 11 (9.2) |
| Plant density | 12 (3.6) | 6 (13.5) |
| Sowing date | 4 (9.4) | 3 (15.0) |
| Deviation of applied N rate from the optimum (X rate) | 2 (9.6) | 10 (10.6) |
| Radiation (PAR) | ||
| •from E4 to M0 stage | 14 (0.9) | 7 (13.3) |
| •from M0 to M3 stage | 5 (8.4) | 9 (10.9) |
| Climatic deficit (P-PET) | ||
| •from E4 to M0 stage | 9 (5.8) | 2 (18.6) |
| •from M0 to M3 stage | 8 (6.1) | 8 (13.3) |
| Number of days with | ||
| •Tmax> 30°C from E4 to M0 stage | 11 (3.9) | |
| •Tmax> 30°C from M0 to M3 stage | 1 (15.1) | |
| •Tmax> 32°C from E4 to M0 stage | 5 (13.6) | |
| •Tmax> 32°C from M0 to M3 stage | 12 (8.3) | |
| •Tmax> 34°C from sowing to E4 stage | 14 (3.9) |
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