论文部分内容阅读
1影响杂交油菜种子纯度的因子1.1种子变异杂交油菜种子生产采用的是三系配套法,在三系种子生产过程中,不育系、保持系、恢复系都可产生变异,造成亲本种子不纯,用不合格的亲本种子制种,直接影响了杂交F1代的纯度。1.2不育系主茎顶丹花序含少量微粉不育系因花药发育遇不宜气温,主花序顶丹1～10朵花含微粉,可自交结实。
A factor affecting the purity of hybrid rape seed 1.1 Seed mutation Hybrid rape seed production is the use of three-line matching method in the three-series seed production process, sterile lines, maintainer lines, restorers can produce variation, resulting in the parent seed is not pure , With unqualified parent seed production, a direct impact on the purity of the hybrid F1 generation. 1.2 Sterile main stem top dorsal infloresence with a small amount of sterile line due to anther development should not temperature, the top of the main flowering Dan 1 to 10 flowers containing powder, self-self.