Abstract:

The aim was to provide an important basis for the quality classification standard of Codonopsis pilosula seeds. 18 batches of Codonopsis pilosula seeds from different producing areas were selected as tested materials, the germination were determined and analyzed under different conditions to conclude the optimum seed germination condition. The results showed that the optimum seed germination conditions of Codonopsis pilosula as follows: temperature 20℃, light, germinating-beds top of paper (TP). In collapsed bed Codonopsis pilosula was easily infected with mould which could influence the seeds germination. The longer the storage time and the lower the seeds germination so the old seeds seriously effected with the quality. New seeds would lost the vitality at room temperature conditions, but it could keep the vitality for half a year in -20℃ refrigerated. It also found that the average germination percentage of shanxi seeds was 38.37% higher then that of Gansu seeds. The seeds quality classification standard included 6 indexes such as seed germination, the purity, grain weight, moisture content and so on. Seed germination was an important factor for the seeds quality.