Canadian Forestry Service, Agriculture Canada, Newfoundland Forest Research Centre, St. John's, Newfoundland, Canada.
Theor Appl Genet. 1985 May;69(3):247-51. doi: 10.1007/BF00662434.
The paper presents results of a growth chamber progeny test of selected phenotypically superior trees from two white spruce (Picea glauca (Moench.) Voss.) populations in central Newfoundland, Canada. On the basis of heritability of 11 juvenile characters the superior trees have been demonstrated to be suitable as a base population for continued advanced generation breeding. Family selection would produce good genetic gains in the first generation but these can be enhanced considerably by selection of best individuals within the best families for clonal propagation in the second generation or propagation by seed in the second and subsequent generations.
本文介绍了来自加拿大纽芬兰省中部两个白云杉（Picea glauca (Moench.) Voss.）种群中表型优良的选择树木在生长室后代试验中的结果。根据 11 个幼树性状的遗传力，这些优良树木已被证明适合作为继续进行高级世代选育的基础群体。家系选择在第一代中会产生良好的遗传增益，但通过在第二代中选择最佳家系中的最佳个体进行无性繁殖或在第二代及以后的世代中通过种子繁殖，可以大大提高增益。
