对黑龙江省主要种植的 16 2份高粱基础材料进行了单宁含量测定。单宁含量的平均值为0 91% ,其中低于 0 3%的材料有 2 5份 ,占 15 4 %。今后可利用这些基础材料进行低单宁含量杂交种的组配 The tannin content of 16 2 sorghum basal materials mainly planted in Heilongjiang Province was determined. The average content of tannin was 0 91%, of which 25 were less than 0 3%, accounting for 15 4%. In the future, these basic materials can be used for the combination of low tannin content hybrids