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. 2024 Dec 18;24:1182. doi: 10.1186/s12870-024-05924-6

Fig. 1.

Fig. 1

Changes in physiological traits during the needle annual cycle. (a) Chlorophyll a content, (b) Chlorophyll b content, (c) total Chlorophyll content, (d) Carotenoids content, (e) Soluble protein content, (f) Soluble sugar content, (g) Proline content, (h) Peroxidase activity, (i) Malondialdehyde content. The column diagrams depict mean values, while the error bars represent the standard deviation (SD) of the means (n = 9). Different lowercase letters indicate significant differences between months (p < 0.05)