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以粳S、籼S、粳A、籼A四类共8个不育系作母本,以包括广亲和系和恢复系的9个材料为父本,采用8×9NCⅡ设计交配,获得72个组合杂交种,依据F_1杂种结实率,对亲本亲和性进行了研究.结果表明,不育系中_(7001)S、_(8801)S、协青早A、_(80-4)A具有较好的亲和性或可恢复性.根据父本与四类不育系的亲和性,将其分成四类:广亲和恢复系,广亲和选择性恢复系,广亲和系,恢复系.报道了培矮64、CPSDO_(17)具有恢复BT型粳A育性的能力;讨论了它们在长江中下游地区杂交粳稻强优组合选育中的应用价值.
Eight male sterile lines (japonica S, indica S, japonica A and indica A) were used as female parents, and 9 materials including broad compatibility and restorer lines were used as male parents. The parents were mated with 8 × 9NCⅡ to obtain 72 The results showed that _ (7001) S, _ (8801) S, Xieqingzao A, (80-4) A has good affinity or recoverability.According to the affinity of the male parent with the four types of sterile lines, it is divided into four categories: wide compatibility restorer, wide affinity selective restorer, broad compatibility It was reported that Pei’ai 64 and CPSDO_ (17) had the ability to restore BT type A fertility and their application value in combination breeding of high-yielding japonica hybrid rice in the middle and lower reaches of the Yangtze River.