Factor | 5 days after heading | 10 days after heading | 15 days after heading | 20 days after heading |
Maximum temperature | 0.235 | 0.196 | 0.269 | 0.360 |
Minimum temperature | 0.196 | 0.232 | 0.250 | 0.334 |
Average temperature | 0.247 | 0.324 | 0.263 | 0.341 |
Daily temperature difference | 0.233 | 0.215 | 0.295 | 0.268 |
Rainfall capacity | 0.055 | 0.080 | −0.173 | −0.377 |
Air humidity | −0.312 | −0.233 | −0.242 | −0.342 |
solar radiation | 0.050 | 0.031 | 0.207 | 0.301 |