highly significantp < 0.05
When β > 0 and p < 0.01, it indicates a highly significant delay (extension); when 0.01 < p < 0.05, it indicates a significant delay (extension); and when 0.05 < p < 0.1, it indicates an insignificant delay (extension).
When β > 0 and p < 0.01, it indicates a highly significant delay (extension); when 0.01 < p < 0.05, it indicates a significant delay (extension); and when 0.05 < p < 0.1, it indicates an insignificant delay (extension).
The start and end of the growing season are advanced, and the length of the growing season shows an increasing trend.