Medicinal Plant Research 2024, Vol.14, No.4, 234-244 http://hortherbpublisher.com/index.php/mpr 237 high temperatures combined with low humidity can cause drought stress, while low temperatures can slow down metabolic processes and reduce growth (Li et al., 2021a). Therefore, it is crucial to maintain a stable temperature environment to prevent stress and ensure optimal growth conditions for D. officinale (Ding et al., 2018). Figure 2 The changes in phenotype and anthocyanin content of D. officinale post light- or K-treatment (Adopted from Jia et al., 2022) Image caption: (A) The pseudobulbs, (P) under natural light were used as the control, light-treated pseudobulbs, (PL) were treated with red and blue light in 5:1, and K-treated pseudobulbs, (PK) were treated with 3 mM KCl. (B) The phenotype of D. officinale pseudobulbs. (C) Anthocyanin extracted from pseudobulb of D. officinale. (D) The content of anthocyanins in D. officinale pseudobulbs post light- or K-treatment. The different letters represent significant difference at p< 0.05 (Adopted from Jia et al., 2022) Figure 3 The actual scene of Dendrobium officinalefacility cultivation in the Senshan Guocao Expo Garden Base of Yiwu Senyu Agricultural Science and Technology Co., Ltd 3.3 Humidity and air circulation considerations Humidity is another critical factor that affects the physiological functioning of D. officinale. The plant requires a high humidity environment to maintain its physiological processes, such as transpiration and nutrient uptake. Studies have shown that maximum and minimum relative humidity levels are key factors influencing the quality
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