根据杉木地理种源试验和家系选择研究成果，从优良种源区直接引进经鉴定的优良家系组成选育群体，在江苏省句容市３个试点进行测定，优中选优。６ａ研究结果表明，家系间生长，适应性，抗病（炭疽病）性与结实性有显著的遗传差异。高径比、尖削度等干形指标和侧枝粗、林分整齐度等性状未见明显差异。家系选择具有较高的潜力和明显的增产效果。经综合坐标法选出亚林１、亚林２、湘１、湘２、林朵６、林朵７、林朵８、林朵１９、林朵２５等９个综合性状优良的初选家系，比生产上现行推广的广西融水优良种源杉木幼林（５ａ生）材积分别增加４９１％～２００１％（１２ｍ中等立地）；２８３％～１６０２％（１０ｍ较差立地）；１６４％～３７５％（１４ｍ优良立地 According to the research results of geography provenance test and selection of pedigree in Chinese fir, the selected elite families were directly introduced from the provenance provenances to select the breeding population. The experiment was conducted in 3 pilot sites in Jurong, Jiangsu Province. The results of the study 6a indicated that there was a significant genetic difference in the growth, adaptability, disease resistance (anthracnose) and seed set among the families. Height-diameter ratio, taper and other dry-shaped index and thick branches, the uniformity of the forest and other traits no significant difference. Family selection has a higher potential and significant yield increase. Nine primary lineages with good comprehensive characters, such as Yalin 1, Yalin 2, Xiang 1, Xiang 2, Lin Duo 6, Lin Duo 7, Lin Duo 8, Lin Duo 19 and Lin Duo 25, were selected by comprehensive coordinate method. Compared with the current popularization of production in Guangxi, the seed volume of elite provenance Cunninghamia lanceolata (5a) in Guangxi was increased by 491% ~ 2001% (12m middle), 283% ~ 1602% (10m) ); 164% ~ 375% (14m excellent site