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Study on Seed Quality Classification Standard of Vaccariae Semen

Gao Qin, Yang Taixin and Liu Xiaoqing

Objective: To establish the seed quality classification standard of Vaccariae Semen. Method: 34 batches
of Vaccariae Semen seeds samples from different producing areas of the whole country were selected. the
seed purity, 1 000-grain weight, water content and the germination rate of the seeds samples were measured.
K-means analysis was applied for the date analysis. The primary seed quality classification standard of Vaccariae Semen was formulated.
Result: Seed purity and seed germination rate were selected as the primary indicators, and the other
indicators provide the important reference, the Vaccariae Semen seeds were classified into 3 grades.
Conclusion: The quality classification standard of Vaccariae Semen seeds were initially established and it
can be used as the reference standard.