基础种禽;
When mechanical contamination is completely eradicated in the process of wheat seed reproduction by the technology of no-removing the off-types, the purity of foundation seeds and certified seeds are mainly determined by two factors of the breeder seed purity and the natural cross-pollination rate.
采取免去杂技术繁殖小麦种子时,决定所繁殖原种和良种纯度的2个主要因素是繁殖种纯度和品种天然异交率。
Hatching Performance of Foundation Breeder in Shanxi during Three Years
山西某父母代种鸡场三年孵化成绩浅析
It is suggested applying 4 stage procedures of Breeder's Seed → Foundation Seed → Registered Seed → Certified Seed.
建议采用育种者种子→原原种→原种→良种四级程序。
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