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在武汉气候条件下,对陕2A细胞质雄性不育系的不育稳定性进行了观察研究,结果表明用陕2B保持的陕ZA不育系的不育性受环境条件——温度的影响。用国内外单、双低品种(系)广泛测交,筛选到3份较好的单、双低保持材料,2份较好的单、双低恢复材料。1989年实现双低三系配套,选育出双低杂交组合7208。
Under the conditions of Wuhan, the sterile stability of Shaanxi 2A CMS was observed. The results showed that the sterility of Shaanxi ZA CMS was affected by environmental conditions and temperature. A total of three single and double low retention materials and two better single and double low recovery materials were screened extensively at home and abroad with single and double varieties (lines). Achieved in 1989 double-low three-line package, bred a double low hybrid combinations 7208.