不育系协青早A在生产中常发生变异,如果再混入其它杂株就更容易出现质量问题。几年来,我市一直坚持协青早A的繁殖未出现过质量问题,得到广大制种户的肯定。这关键是我们抓住了协A繁殖过程中的质量关。 1 亲本种的选择关繁殖用的亲本质量好坏,直接关系着种子质量。几年来,我们坚持用原种繁殖,用原种繁殖,不仅其 CMS sterile blue early A frequent changes in the production, if mixed with other miscellaneous strains more prone to quality problems. Over the past few years, the city has always insisted that the Association Qing A early breeding did not appear quality problems, the majority of seed households confirmed. The key is that we have grasped the quality of Association A breeding process. The choice of parental species The quality of the parent used for reproduction is directly related to the quality of the seeds. Over the past few years, we insist on breeding with the original species, breeding with the original species, not only its