为了实现造林良种化,良种生产基地化,落实伟大领袖和导师毛主席“有了优良品种,即不增加劳动力、肥料,也可获得较多的收成”的教导,1972年全国林木良种协作会议以来,我省开始了油松母树林营建工作。几年来,我省采用改建人工幼林和天然林的办法,共建成油松母树林8766亩。目前,这些母树林生长健壮,有的已开始大量挂果 In order to achieve afforestation, seed production base, the implementation of the great leader and mentor Chairman Mao, “with good varieties, that is, without increasing labor, fertilizer, but also get more harvest” teaching, since 1972, the national forest seed coordination meeting , Our province started the pine tree forest construction work. Over the past few years, the province adopted the method of rebuilding artificial young forests and natural forests, a total of 8766 acres of oil pine mother wood. At present, these mother forests grow robustly, and some have begun to massively hang fruit