该方法既区别于单纯生产原种的“株系循环法”，也区别于选育新品种的纯系育种法。
It is differ both from the method of "circulate line selection" for seed reproduction and from the method of "pure line breeding" for varieties development.
特优21是利用常规育种技术选育出的水稻优质米新品种。
Teyou 21 is USES the convention breeding technology seed selection to go out high quality variety.
玉米的单倍体育种，是利用花药培养或孤雌生殖产生单倍体后，进行人工或自然加倍，迅速获得稳定的新品种的育种方法。
The haploid breeding of maize is a technology that using anther culture or gynogenesis to produce haploid, and then obtain stable new varieties through natural or artificial doubling.
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