利用生物统计的方法对天津名品花卉晚香玉的单、重瓣两个品种的开花球、繁殖球进行分析与评价。以种球围径、饱满度、病虫害等方面分成3个等级,并分析分类的合理性。规定了晚香玉种球的质量等级、试验方法、检验规则、标志、包装、运输及贮藏条件。制定了适宜目前天津地区晚香玉种植和生产的种球质量标准。 Biostatistics methods were used to analyze and evaluate the flowering and breeding balls of single and double petals of famous tuberose in Tianjin. In order to bulid size, fullness, pests and diseases into three levels, and analysis of the rationality of classification. The provisions of the quality of tuberous incense ball class, test methods, inspection rules, signs, packaging, transportation and storage conditions. Developed suitable for the current Tianjin Tuberosa planting and production of bulbs quality standards.