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选择优树是建立杉木种子园的先决条件,是当前林木育种的重要环节。优树选择,始于本世纪30年代。目前世界上已有30来个国家作了选优工作。我国广大林业职工,遵循毛主席“自力更生”的教导,于60年代初期开始杉木选优工作。在伟大的无产阶级文化大革命的推动下,在“农业学大寨”的群众运动中,随着我国南方大规模杉木用材林基地建设的迅速发展,选优工作进展很快,取得了很大成绩。据1975年10月统计,优树选择数量就比文化大革命前增加10倍,为实现杉木造林良种化打下了基础。
Choosing the best tree is the prerequisite for establishing the Chinese fir seed orchard, which is an important part of current tree breeding. Tree selection, began in the 1930s. At present, 30 countries in the world have made excellent work. The vast majority of forestry workers in our country follow the guidance of Chairman Mao’s “self-reliance” and started the excellent work of Chinese fir in the early 1960s. Under the great proletarian cultural revolution, with the rapid development of the large-scale Chinese fir timber forest base in the mass movement of “learning from agriculture in Dazhai”, great progress has been made in the selection and excellent work and great achievements have been made. According to the October 1975 statistics, the number of superior trees to choose than the pre-Cultural Revolution increased by 10 times, in order to achieve afforestation of Chinese fir laid the foundation.