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前报研究表明,与育性恢复基因相连锁的花器官形态是花瓣宽度、花药长度和♀/♂值。根据F_1花器官形态的表现型,可以判断测定品种的基因型,从而明确其恢、保性质。同时初步明确“304—1”、“C_2—1”两个品种是细胞质雄性不育系的恢复系。在此基础上,本年度(1978～1979)着重研究测交品种对细胞质雄性不育系的恢、保作用,并对两个恢复系的F_1优势程度进行鉴定,以提高“三系”的配套水平。
The previous report shows that the floral morphogenesis linked to the fertility restorer gene is the petal width, anther length and ♀ / ♂ value. According to F_1 flower morphological phenotype, you can determine the genotypes of the tested varieties, so as to clarify its recovery and preservation properties. At the same time, it was initially clarified that “304-1” and “C_2-1” were two restorer lines of cytoplasmic male sterile lines. On this basis, this year (1978 ~ 1979) focuses on the restorer and sequestration of cytoplasmic male sterile lines and the identification of F_1 dominance in two restorer lines to improve the matching level of “three lines” .