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对龙泉市林科所杉木第1代种子园盛果前期资料的统计分析表明，嫁接后第3—4年开始投产，第8～9年开始进入盛果期，产量一般稳定在75～120kg／hm2；各无性系间平均单株产量差异板显著，而且重复率达到57．96％～70．61％；同一无性系直冠形接株平均单株产量极显著高于盘冠形接株，差距达到3．5倍左右，并且随着树龄增加而扩大，而种子发芽率前者极显著高于后者，涩粒率前者低于后者。因此，选择遗传性优良的高产无性系为建园材料，培养直冠形接株，是种子园达到高产、稳产和优质的关键。
The statistical analysis of the data of the early fruiting stage of the first generation seed orchard of Chinese fir in Linchu Branch of Longquan City showed that the gravida was put into operation in 3-4 years after grafting and entered the full fruit stage from the 8th to the 9th year. The yield was generally stable at 75-120kg / hm2. The average yield per plant of all clones was significant, and the repeatability was 57.96% ~ 70.61%. The average single yield per plant of the same clones was significantly higher than that of the panicles, The difference reached about 3.5 times, and with the increase of age, the seed germination rate was significantly higher than the former, the former was lower than the latter. Therefore, the selection of genetically superior high-yield clones for the construction of garden material, the cultivation of straight crown strain, is the seed orchard to achieve high yield, stable yield and high quality key.