OBJECTIVE: To study quality test, and establish quality classification standard of Platycodon grandiflorum. METHOD: The seed quality and planting quality of P. grandiflorum from different producing areas and in different growing years were measured. RESULT AND CONCLUSION: The range of seed purity, weight per 1000 seeds, seed moisture content,seed viability were determined and the primary seed quality classification standard was established.
OBJECTIVE: To study quality test, and establish quality classification standard of Platycodon grandiflorum. METHOD: The seed quality and planting quality of P. grandiflorum from different producing areas and in different growing years were measured. RESULT AND CONCLUSION: The range of seed purity, weight per 1000 seeds, seed moisture content,seed viability were determined and the primary seed quality classification standard was established.