天津市武清县南蔡公社农科站在公社党委的领导下,认真执行科研为无产阶级政治服务,科研与农业生产相结合的方针,发动群众,打破常规,群选群育,多快好省地育成了“综二”玉米自交系及其优良组合—“门可B×综二”。这个自交系“综二”是从一个综合杂交种[用新双一号的母本做母本,用丰收(101、103、105)、胜利(105、117)、英粒子、大屁股快、新双一号母本、罗马尼亚杂交三代的等量种籽混合做父本杂交选育而成],选择优株,经 Under the leadership of the commune party committee, Tianjin Nanchuai Commune Agricultural Station under the leadership of commune party committees, earnestly implemented the principle that scientific research should serve proletarian politics and combine scientific research with agricultural production, mobilize the masses, break the routine, choose a mass group, Provincial bred “full two” corn inbred lines and their excellent combination - “door can be B × comprehensive two.” This inbred line, “Zong Er”, was developed from a hybrid hybrid [using the mother of a new double as the female parent, bumper harvest (101,103,105), victory (105,117) , The new double the first female, Romanian hybrid three generations of the same amount of seedbreeding hybrid parenting], choose superior strains, the