我省阔叶树良种选育协作组成立已有四年的历史了。四年来,在毛主席的革命路线指引下,在农业学大寨运动不断深入,农林科学实验群众运动蓬勃发展的大好形势下,各协作单位认真贯彻执行科研为无产阶级政治服务,为工农兵服务,与生产劳动相结合的方针,取得很大成绩,积累了许多经验,对实现林木良种化和速生丰产,创造了极为有利的条件,据统计,目前全省共选出楸桐、白椿、扇子榆、青皮加杨、白皮加杨、耿 Four years have passed since the founding of Broad-leaved Tree Breeding Cooperatives in our province has been established. Under the guidance of Chairman Mao’s revolutionary line in the past four years, with the deepening movement of Dazhai in agriculture and the thriving development of massacre of scientific experiments in agriculture and forestry, all the cooperative units conscientiously implemented scientific research to serve the proletarian politics and serve the workers, peasants and soldiers , With the combination of production and labor policy, made great achievements, has accumulated a lot of experience, to achieve forest tree planting and fast-growing, and created extremely favorable conditions, according to statistics, the province selected a total of Catalpa bungei, white toon, Fans Yu, Qingpi plus Yang, white plus Yang, Geng