Investigation and Analysis of Tartary Buckwheat and Planting Soil Resources in Different Producing Areas
The flavonoid content in Tartary buckwheat grains is not only influenced by genetic factors,but also by planting location and soil quality.In order to study the relationship between the content of flavonoids and heavy metals in tartary buckwheat seeds from different cultivation areas in China,tartary buckwheat raw materials and soil samples from tartary buckwheat cultivation areas in China,including Sichuan,Yunnan,Guizhou,Shaanxi,Gansu,Shaanxi,and Ningxia were collected,and the contents of flavonoids and heavy metals were tested and analyzed.The results showed that the flavonoid content in tartary buckwheat seeds was correlated with the altitude and latitude of the planting area,with higher flavonoid content in high altitude and low latitude regions such as Sichuan and Yunnan;Heavy metals in soil are related to heavy metals in grains,and the contents of heavy metals in tartary buckwheat is relatively low in areas with low soil heavy metals such as Sichuan and Shaanxi.The results of the overall research indicate the Sichuan tartary buckwheat has a comparatively low concentration of heavy metals and a high flavonoid content.
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