Fig. 4From: Comparative RNA-sequencing-based transcriptome profiling of buds from profusely flowering ‘Qinguan’ and weakly flowering ‘Nagafu no. 2’ apple varieties reveals novel insights into the regulatory mechanisms underlying floral inductionHormone contents of buds during the flower bud physiological differentiation stage in ‘Qinguan’ and ‘Nagafu No. 2’ apple varieties. a Auxin (AUX). b Cytokinin (CTK). c Gibberellin (GA). d Abscisic acid (ABA). ES, MS, and LS correspond to the early, middle, and late stages of flower bud differentiation, respectively. Data are presented as the mean ± standard error, n = 3. *p < 0.05; **p < 0.01; ***p < 0.001; ns, non-significant (p > 0.05)Back to article page