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从美国引进的一年生多芽(细胞质)雄性不育杂交组合和二年生单系分离出一年生多芽和单芽花粉恢复系(P—MM 和 P—mm),这两个恢复系和一年生多芽和单芽雄性不育系(TA—1—MS 和 TA—2—MS)杂交。TA-2—MS×P—mm 和 TA—1—MS×P—MM 的杂交组合后代 F_1和
One-year multiple bud and single bud pollen restorer lines (P-MM and P-mm) were isolated from the annual multi-bud (cytoplasmic) male sterile crosses and biennials introduced from the United States. The two restorer lines and the annual buds Single bud male sterile lines (TA-1-MS and TA-2-MS) were crossed. TA-2-MS × P-mm and TA-1-MS × P-MM