在杂种优势利用愈来愈被育种工作者重视的今天,各地正广泛开展适用于各种作物的一代杂种制种技术的研究。利用自交不亲和系配制一代杂种,可以大大减省工作量,降低种子生产成本。自交不亲和性广泛存在于十字花科、禾本科、豆科、蔷薇科、茄科、菊科、罂粟科等许多科的植物内,据依斯脱(East1940)估计有超过3000个种内存在自交不亲和 Today, as heterosis utilization becomes more and more emphasized by breeders, a lot of studies have been carried out on the generation of hybrid seed production techniques applicable to various crops. The use of self-incompatibility to formulate a generation of hybrids, can greatly reduce the workload and reduce the cost of seed production. Self-incompatibility is widespread in plants of many families such as Cruciferae, Poaceae, Leguminosae, Rosaceae, Solanaceae, Compositae, Papaveraceae, etc. According to East1940, there are over 3000 species Memory is self-incompatible