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种植玉米双交种是一项经济有效的增产措施,每亩平均约可增产玉米100斤。为了促进我省玉米双交种更好更快的普及推广,山东农学会于1964年11月24日至28日召开了玉米双交种繁育技术座谈会,交流了各地玉米双交种试验、示范、推广和繁育制种的经验,讨论了进一步加速普及、提高配制技术与制种质量,和健全繁育制度等问题。会议认为1964年我省玉米双交种的繁育推广有了很大发展,繁育制种技术有了显著提高,成绩是令人欢欣鼓舞的,种植一代双交种的面积,比去年扩大了一倍,制种数量比去年增加了十
Growing corn double crosses is a cost-effective stimulation measure, yielding about 100 kg of corn per acre on average. In order to promote a better and faster popularization and promotion of corn hybrids in Shandong Province, Shandong Agricultural Association held a symposium on breeding techniques of double hybrid diplomas of corn from November 24 to November 19, 1964, , Popularizing and breeding seed production experiences, and discussing such issues as further accelerating popularization, improving the quality of the preparation techniques and seed production, and perfecting the breeding system. The meeting held that in 1964, the breeding and popularization of corn double crossbreds in our province had greatly progressed, and the breeding and seed production techniques had been significantly improved. The achievements were encouraging. The area of double crossbreds to be planted was twice that of last year , The number of seed production increased by 10 over last year