按水稻原种生产技术操作规程(GB/T17316-1998),水稻三圃原种生产方法在选择优良单穗后,分别进行单穗脱粒、装包保存、撒种育秧或整穗育秧、单本移栽、建立穗行、穗行比较鉴定、优选穗行建立穗系、穗系比较鉴定、优系混合、生产原种。实践表明这些环节易造成混杂,特别是秧田稻粒残留(杂草稻种子或上年水稻落粒)及播种移栽环节的混杂,且移栽缓苗慢,单株生长差异较 According to the technical rules for the production of raw rice seeds (GB / T17316-1998), the method of original seed production for rice Sanpu, after selecting a good single ear, separately performs single-tassel threshing, bagging preservation, sprinkling seedling or whole-seedling seedling, Transplanting, the establishment of ear lines, ear comparison identified, preferably panicles to establish ear lines, ear lines identified appraisal, mixed with excellent lines, the production of the original species. Practice shows that these aspects are likely to cause promiscuity, especially rice seedling residue (weedy rice seed or rice last year) and sowing transplanting part of the hybrid, and slow transplanting slow, single plant growth differences