Table 3 Directions and rank importance of relationships of main effect climatic predictors with yield
From: Limited impacts of climatic conditions on commercial oil palm yields in Malaysian plantations
Stage | Climatic variable (main effect) | Relationship with yield | Rank importance among main effect climatic predictors (1 is most important) | ||
|---|---|---|---|---|---|
Raw data | Anomalised data | Raw data | Anomalised data | ||
Sex determination (29-month lag prior to harvest) | Tmin | Positive | 1 | ||
Rainfall | Positive | 4 | |||
Inflorescence development (14-month lag prior to harvest) | Tmax | Quadratic (positive, plateauing) | Positive | 1 | 3 |
Rainfall | Negative | Negative | 3 | 6 | |
Inflorescence abortion (10-month lag prior to harvest) | Rainfall | Quadratic (peak at 460 mm monthly rainfall) | Positive | 2 | 5 |
Harvest (no lag) | Tmax | Negative | 2 | ||