不同花色芍药次生代谢产物和全氮、全磷、全钾含量测定OA

[Objective]To investigate the contents of secondary metabolites and total nitrogen,total phosphorus,and total potassium in Paeonia lactiflora with different flower colors,providing a reference for the development and utilization of P.lactiflora resources.[Methods]Twelve varieties of P.lactiflora belonging to four color series(red,purple,yellow,and white)were used as experimental samples.The contents of secondary metabolites(total phenols,tannins,proanthocyanidins,flavonoids,and anthocyanins)and total nitrogen,total phosphorus,and total potassium in the petals were determined.[Results]The red color series P.lactiflora exhibited all higher contents of total phenols,tannins,flavonoids,and anthocyanins,with the ranges of 47.582-52.167,66.768-82.746,6.194-9.055,and 0.187-2.844 g/kg,respectively.The total nitrogen,total phosphorus,and total potassium contents in the purple color series P.lactiflora were 4.787-5.756,1.085-1.541,and 2.757-3.822 g/kg,respectively;these contents in the red color series P.lactiflora were 4.456-4.740,0.860-1.204,and 2.338-3.432 g/kg,respectively;these contents in the yellow color series P.lactiflora were 3.884-4.371,0.923-1.143,and 2.294-3.526 g/kg,respectively;these contents in the white color series P.lactiflora were 4.638,1.076,and 2.329 g/kg,respectively.[Conclusion]The red color series P.lactiflora exhibited all higher contents of secondary metabolites as well as total nitrogen,total phosphorus,and total potassium,indicating stronger biological activity and higher application value.