研究海南降香檀种子质量的分级标准.选择海南降香檀种子30个批次样本进行分选,以及对净度、优良度、千粒重、生活力、含水量等指标的测定,确定种子质量分级标准.降香檀种子优良度、生活力和千粒重是5项种子分级指标中的主要标准,其他指标作为参考.种子优良度为95％,生活力为84.2％,千粒重在131.4g以上的种子被列为一级种子；种子优良度为70％,生活力为70.1％,千粒重在128.1g以上的种子被列为二级种子.建立了海南降香檀种子质量分级标准.%Studied the standard of Dalbergia odorifera T. Chen seed quality classification. Choose 30 samples of Dalbergia odorifera T. Chen seeds as materials. Seed purity,seed goodness,weight per 1000 seeds,seed viability , and content of water mensurated. According to the data, standard of the seed quality classification was set up. Seed goodness, seed vialility and weight per 1 000 seeds were described as major standard of seed quality classification and others as reference. The first grading seed were described as seed goodness more than 95% , seed vialility percentage more than 84.2% , and weight per 1 000 seeds more than 131.4 g. The second grading seed were described as seed goodness more than 70% ,seed vialility percentage more than 70.1% ,and weight per 1 000 seeds more than 128.1 g.
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