Mean weighted (bootstrapped) slopes of the relationship between the mean bud burst score in 2015 and mean January, July and mean annual temperatures experienced by the parent trees.

Error bars denote 95% confidence intervals (upper and lower) across the 500 bootstrapped values. Significances at the 95% level are denoted by *. ‘Earlier’ means that buds burst earlier with increasing temperatures and ‘Later’ means that buds burst later with increasing temperatures.