Study on Inspection Procedures of Knoxia roxburghii Seeds
To study the seed inspection procedures of Knoxia roxburghii,and provide the basis for the formulation of seed quality standards of K.roxburghii.With reference to the method of crop seed in-spection procedures,the conventional indicators such as seed sampling,purity analysis,seed authen-ticity,1 000-grain weight,water content,germination rate,and viability were compared and analyzed to find a suitable test method for K.roxburghii seeds.The results showed that the purity analysis sample of K.roxburghii seeds was not less than 0.3 g,the seed authenticity was identified by mor-phological observation and identification method,and the seed weight was determined by thousand seed weight method.The seed moisture content was determined by baking at 131℃for 6 h,and the seed viability was determined by staining with TTC solution at a concentration of 0.1%at 25℃or TTC concentration of 0.5%at 20-25℃for 16 h.The seed germination rate was measured at 25°C(12h light/12h dark)after seed disinfection,and the germination bed was sand.
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