本文报道了我国近50个已形成商品生产力的杉木种子园,种子遗传品质的大田测验幼林结果。试验表明:①各地种子园的种子与未经改良的种子一样,均有不同的遗传品质,说明并非所有种子园种子都有同等使用价值;②不少种子园的种子比当地一般种子的遗传品质要高,说明具有一定的改良效果,但比优良种源区的种子的种用价值又低了些。可见,不经实地试验,推广杉木种子园种子,应取慎重态度。为了提高初级种子园的遗传品质,极需要做种子园的去劣淘汰。 In this paper, we report the results of field trials of nearly 50 cedar seed orchards and their genetic quality in China. The results showed that: (1) The seeds of seed orchards in each area had the same genetic quality as those of unmodified seeds, indicating that not all the seed orchards had the same value of use. (2) Many of the seed orchards had higher genetic quality than the local ones To be high, indicating a certain degree of improvement, but higher seed quality than the provenance species and lower. Visible, without the field test, the promotion of Chinese fir seed orchard, should be taken cautiously. In order to improve the genetic quality of primary seed orchard, it is very necessary to eliminate or eliminate the seed orchard.