Zhang Mengwen, Huang Chuanteng, Lin Ling, Chen Lin, Yang Xiaoli, Dong Xiaona, Song Jiaming, Chen Feifei
Hainan Academy of Forestry (Hainan Academy of Mangrove), Haikou 571100, China.
The Innovation Platform for Academicians of Hainan Province, Haikou 571100, China.
Plants (Basel). 2025 Aug 15;14(16):2545. doi: 10.3390/plants14162545.
Valued for furniture, crafts, and medicine, T. C. Chen confronts critically depleted wild populations and slow cultivation growth, necessitating precision nutrient formulation to overcome physiological constraints. Using a '3414' regression design with four levels of N, P, and K, this study identified phosphorus (P) as the most influential nutrient in regulating growth (P > N > K). Maximal growth enhancement occurred under T7 (N2P3K2), with height and basal diameter increments increasing by 239% and 128% versus controls ( < 0.05). Both traits exhibited progressive gains with rising P but unimodal responses to N and K, initially increasing then declining. T7 boosted total biomass by 50% ( < 0.05) with stem-biased partitioning (stem > root > leaf; 52%, 26%, 22%). Photosynthetic capacity increased significantly under T7 ( < 0.05), driven by P-mediated chlorophyll gains (Chla + 70%; Chlb + 75%) and an 82% higher net photosynthetic rate. Metabolic shifts revealed peak soluble sugar in T7 (+139%) and soluble protein in T9 (+226%) ( < 0.05), associated primarily with P and K availability, respectively. Correlation networks revealed significant associations among structural growth, photosynthesis, and metabolism. Principal component analysis established T7 as optimal, defining a "medium-N, high-P medium-K" precision fertilization protocol. These findings elucidate a phosphorus-centered regulatory mechanism governing growth in , providing a scientific foundation for efficient cultivation.
因其在家具、工艺品和医药方面的价值，某植物面临着野生种群严重枯竭和人工栽培生长缓慢的问题，因此需要精确的养分配方来克服生理限制。本研究采用包含氮、磷、钾四个水平的“3414”回归设计，确定磷（P）是调节生长最具影响力的养分（P > N > K）。在T7（N2P3K2）处理下生长增强最大，与对照相比，株高和基径增量分别增加了239%和128%（P < 0.05）。这两个性状均随着磷含量的增加而逐步增加，但对氮和钾的响应呈单峰，最初增加然后下降。T7使总生物量提高了50%（P < 0.05），生物量分配偏向茎部（茎>根>叶；52%、26%、22%）。在T7处理下光合能力显著增加（P < 0.05），这是由磷介导的叶绿素增加（叶绿素a增加70%；叶绿素b增加75%）和净光合速率提高82%驱动的。代谢变化显示T7中可溶性糖达到峰值（增加139%），T9中可溶性蛋白达到峰值（增加226%）（P < 0.05），分别主要与磷和钾的有效性有关。相关网络揭示了结构生长、光合作用和代谢之间的显著关联。主成分分析确定T7为最优处理，定义了一种“中氮、高磷、中钾”的精确施肥方案。这些发现阐明了一种以磷为中心的调节某植物生长的机制，为高效栽培提供了科学依据。
