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1建立一、二级种子田1.1一级种子田用原种提供的原种种子繁殖,或从外地引入经试验确定为推广品种种子的种子田。在建立原种圃的地区,可繁殖原种一代即为大田用种,用于大田生产。在没有原种圃的地区,一级种子田也可种植从大田或丰产田中选出的优良单穗混合脱粒的种子。经严格去杂去劣,作为良种用于二级种子田或大田。1.2二级种子田当一级种子田生产的种子数量不能满足全部大田用种时,可建立二级种子田。二级种子田种子来源于一级种子田
1. Establish primary and secondary seed fields 1.1 Primary seed fields Reproduce original seeds provided by the original seeds or seed fields experimentally determined to be popularized seeds. In the area where the original nursery garden was established, the original breed can be used for field production for the first time in the field. In areas where there are no original nurseries, primary seed fields can also be planted with fine, single-spike mixed threshed seeds selected from field or high yield fields. Strict to go to miscellaneous and poor, as a seed for secondary seed fields or fields. 1.2 secondary seed field when the seed production of a seed field can not meet the need for all field use, you can establish a secondary seed field. The second seed field seed comes from the first seed field