辽宁葫芦岛栽培北苍术根茎主要性状与苍术素含量分析OA

To evaluate the cultivational adaptability of introduced Atractylodes chinensis germplasm in the Huludao area of western Liaoning Province and to understand the correlation between key traits and medicinal quality,A.chinensis seedlings sourced from eastern Liaoning were cultivated in the resource nursery of Suizhong County,Huludao City,and planted in both flat and sloping land,The harvested rhizomes were examined for their morphological traits,and the content of atractylodin was analyzed using high-performance liquid chromatography(HPLC).The results revealed that rhizomes cultivated on flat land showed shorter lengths,smaller diameters,and fewer oil chambers in cross-sections compared to those grown on sloping land.Moreover,the fresh weight of 4-year-old and 6-year-old rhizomes cultivated on sloping land was 28.9％and 108.0％higher than those cultivated on flat land,respectively.The atractylodin contents ranged from 0.025％to 0.307％in 4-year-old rhizomes and from 0.217％to 0.675％in 6-year-old rhizomes.Notably,the atractylodin content in 4-year-old and 6-year-old rhizomes cultivated on sloping land was 1.5 times and 0.8 times higher compared to those grown on flat land,respectively.Cor-relation analysis demonstrated a significant correlation between atractylodin content and morphological characteristics including of rhizome length,diameter,and fresh weight.In summary,the growth and atractylodin content of 6-year-old A.chinensis in the Huludao region were higher than those of 4-year-old plants,and sloping land was more conducive to the accumulation of atractylodin.These findings provide valuable insights for the assessment of quality and the optimization of cultivation practices for A.chinensis.