Fig. 3From: 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 inductionNitrogen and sugar contents and the ratio of carbon to nitrogen in the buds of ‘Qinguan’ and ‘Nagafu No. 2’ apple varieties during the flower bud physiological differentiation stage. a Sucrose. b Glucose. c Fructose. d Sorbitol. e Starch. f Total sugar. g Nitrogen. h C/N. N%: percentage of nitrogen content; C/N: carbon to nitrogen ratio. 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