Fig. 6
From: Temperature control of shoot growth and floral initiation in apple (Malus × domestica Borkh.)
Mean floral development stages of dissected buds of spurs and extension shoots of the apple cultivars ‘Summerred’ and ‘Discovery’ as influenced by 12 weeks of exposure to various constant temperatures as indicated in the years 2016 and 2017. Stage 1 denotes entirely vegetative buds and stage 7 denotes fully differentiated primary flowers. Each point represents the mean of 5 trees in 2016 and of 3 trees in 2017