Figure 1.

Volatile aroma compounds in O. fragrans flowers. A Full blossoming flowers of 20 wide-cultivated O. fragrans cultivars; 1: Chenghongdangui, 2: Zhuangyuanhong, 3: Xiangshandangui, 4: Zhushagui, 5: Hongyanningxiang, 6: Jiaorong, 7: Liuyeyingui, 8: Huangchuanjingui, 9: Lianzidangui, 10: Fujianhong, 11: Jinqiuzao, 12: Guizhousijigui, 13: Ruanyejingui, 14: Ziyue, 15: Suiyin, 16: Fudingzhu, 17: Dayehuang, 18: Danzhuang, 19: Mijieyingui, 20: Boyeyingui. B Heatmap of different volatile aroma compound contents in 20 cultivars; Scale bar = 1 cm. C Linalool contents of the full blossoming stage flowers in 20 cultivars. D Proportion of different terpenoids in full blossoming flowers of BBYG. E Linalool contents of the four blossoming stages of BBYG, F1: bud stage; F2: initial blossoming stage; F3: full blossoming stage; F4: late blossoming stage. All experiments were performed three times, each containing three biological replicates. The error line represents the average ± SD, and the asterisk represents the significant difference analysis compared with the control group, evaluated by one-way ANOVA. ^*P < 0.05, ^**P < 0.01, ^***P < 0.001