Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement/Guangxi Engineering Research Center of TCM Resource Intelligent Creation, National Center for TCM Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China.
College of Pharmacy, Guangxi Medical University, Nanning, China.
Sci Rep. 2024 Mar 1;14(1):5110. doi: 10.1038/s41598-024-55406-w.
Platostoma palustre is an annual herb and an important medicinal and edible plant in southern China. Plastic-film mulching is an effective agronomic practice in the cultivation system of P. palustre, of which black-film mulching is the most common. However, fewer researches have been focused on the use of other colors of plastic films in P. palustre cultivation. In this study, different colors (white, black, red, and green) of plastic film were adopted, and the effects of different colors of plastic film mulching on the soil temperature, yield, and metabolites of P. palustre were investigated. The results showed that the fresh weight of a single plant of the green film treatment was significantly higher than that of the white film treatment (n = top 28). Based on the results of three temperature measurements, the soil temperature was almost the highest in the red film treatment and lowest in the white film treatment. The metabolomic analysis revealed that a total of 103 differential metabolites were identified. Among these, the gluconic acid, deoxyribose, and N-Acetylmannosamine in the red film treatment presented the highest abundance compared with the other treatments, meanwhile, the abundances of the five monosaccharides in the red film treatment were significantly higher than those of the green film treatment. Moreover, the sucrose, trehalose, and D-(+)-trehalose in the green film treatment exhibited the highest abundance, and the abundances of eight different amino acids in the red film treatment were almost the lowest while those in the black film treatment were almost the highest. Further analysis of the membership function values indicated that the black and red film treatments might be more suitable for the cultivation and quality production of P. palustre in comparison with the other two treatments. This study will provide a theoretical basis for improving the efficient cultivation technology of P. palustre and forming a theoretical system of P. palustre film mulching cultivation.
泽珍珠菜是中国南方地区一年生草本植物，也是重要的药用和食用植物。在中国泽珍珠菜的栽培系统中，地膜覆盖是一种有效的农业实践，其中最常见的是黑色地膜覆盖。然而，关于其他颜色地膜在泽珍珠菜栽培中的应用研究较少。本研究采用不同颜色（白色、黑色、红色和绿色）的地膜，研究了不同颜色地膜覆盖对泽珍珠菜土壤温度、产量和代谢物的影响。结果表明，绿色膜处理的单株鲜重明显高于白色膜处理（n=top 28）。基于三次温度测量结果，红色膜处理的土壤温度几乎最高，白色膜处理的土壤温度最低。代谢组学分析共鉴定出 103 个差异代谢物。其中，红色膜处理的葡萄糖酸、脱氧核糖和 N-乙酰甘露糖的丰度最高，与其他处理相比，同时，红色膜处理的 5 种单糖丰度明显高于绿色膜处理。此外，绿色膜处理的蔗糖、海藻糖和 D-（+）-海藻糖的丰度最高，而红色膜处理的 8 种不同氨基酸的丰度几乎最低，黑色膜处理的 8 种不同氨基酸的丰度几乎最高。隶属函数值的进一步分析表明，与其他两种处理相比，黑色和红色膜处理可能更适合泽珍珠菜的栽培和品质生产。本研究将为提高泽珍珠菜高效栽培技术提供理论依据，形成泽珍珠菜地膜覆盖栽培理论体系。
