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本文通过对包括70个杉木初级种子园在内的4个试验点生长材料的分析,揭示我国杉木的表型选择是有效的,有近50%左右的种子园子代生长优于未经改良的种子。但也有20%的(种子园)子代生长不如对照。与优良种源区的种子相比,多数种子园的遗传品质较低。建议采取去劣措施,改善初级种子园的遗传品质。当前应更重视优良种源区种子的利用。
In this paper, we analyzed the growth materials of four experimental sites including 70 Chinese fir primary seed orchards and found that the phenotypic selection of Chinese fir is effective. About 50% of the seed orchard progenies grow better than the unseeded seeds . However, 20% of the seed gardens grow better than the control. The genetic quality of most seed orchards is lower than that of seed in good provenance areas. Suggest to take bad measures to improve the genetic quality of primary seed orchard. At present, more attention should be paid to the utilization of seeds in the good provenance area.