1 统一种源。原种纯度高低是保证种子质量的首要因素。十几年来,我们一直坚持由公司统一提供原种。主要是从育种单位和省地种子部门调入原种。近几年又自己动手用“三圃”法生产一部分原种,严把原种质量关。原种入库后,立即进行室内复验,鉴定其纯度是否达到标准要求。首先从粒色、粒形、脐色、光泽上看是否典型一致,然后进行幼苗鉴定,通过叶形、茎色等特征鉴定其纯度,达 A unified source. The purity of the original species is the primary factor to ensure the quality of the seeds. For more than ten years, we have always insisted on providing the original seed by the company. Mainly from the breeding units and the provincial seed sector transferred to the original species. In recent years and do it yourself with “three nursery ” method to produce part of the original species, strict quality of the original species. After the original stock storage, indoor retest immediately to determine whether the purity of its standard requirements. First of all from the grain color, grain shape, umbilical color, gloss is typical or not, and then seedling identification, through the leaf shape, stem color and other characteristics of its purity, up to