Hi, friends.
I measured the air temperature every hour of a day in two treatments: below the 10-story canopy and in 10 open areas at a standard distance from each plant. Therefore, I obtained two regressions between the hours of the day (predictor) and the air temperature (response). The relationships between the variables are bell-shaped, so we need to fit polynomial models. Then I must compare the inclination of the lines. Can I use ANCOVA to evaluate polynomial regressions and select the best model, using p