杂交油菜种子质量试验及分级问题探讨

对杂交油菜种子进行科学的质量分级，是当前种子生产和质量管理方面急待解决的问题，通过试验研究认为，对于育成时间短，应用面积小的杂种组合进行种子质量分级，条件尚不成熟。但对推广时间长。面积大，质量比较稳定的质不育“三系”和核不育“两系”杂交组合制定种子质量标准则是可行的。该文依据试验结果，探讨了质不育“三系”和核不育“两系”油菜杂交种种子质量的分级问题。

DISCUSSION OF THE TEST AND CLASSIFICATION ON THE HYBRID RAPE SEEDS QUALTY

Since our country has cultivated the first hybrid rape seeds extended and applied on a large scale in the world,many types and more than ten kinds of hybrid rape seeds were born following it. So it has become an urgent problem on the seeds producion and quality management to classify the seeds quality by a scientific method. Through the experiments ,it shows that the classifying prereguisits for short-time-cultivated and small-area-applied hybrid seeds is not ripened, But for the long-time -used and large-area-planted and steady nature including ternary and binary cross combinatons work out the seed quality standard is practicable ,This paper dealswith seed quality classification of hybuid rape