Abstract Provenance experiments traditionally provide information on genetic variation within tree species in adaptation ability and other traits important for commercial forestry. In this study we investigated variation in growth among 20 populations of Norway spruce (Picea abies (L.) H. Karst) at four common-garden sites of the IUFRO 1972 provenance experimental series at the age close to half of rotation. Because stand density varied among sites, we analyzed stand density-adjusted basal area (BA) and quadratic mean diameter (Dq). The examined provenances varied significantly in both analyzed traits. We identified provenances that performed consistently better or worse than average across all four sites. Among the well-growing and possibly adaptive seed sources were those from the uplands of the eastern and central Poland, Sudety Mts, and from the region of Istebna in Beskid Mts. Performance of the other populations from Beskid Mountains was average to poor, and all high-altitude populations were poor-growing. The results of this study help to verify the knowledge of genetic variation pattern among Norway spruce populations in Poland, and to guide management decisions regarding spruce planting material.

中文翻译：

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IUFRO 1972 原产地实验系列中挪威云杉的生长变化

摘要 种源实验传统上提供了树种内在适应能力和其他对商业林业重要的性状方面的遗传变异信息。在这项研究中，我们调查了 20 个挪威云杉 (Picea abies (L.) H. Karst) 在 IUFRO 1972 起源实验系列的四个公共花园地点在接近轮换一半的年龄时的生长变化。由于林分密度因地点而异，我们分析了林分密度调整后的基面积 (BA) 和二次平均直径 (Dq)。检查的来源在两种分析的性状中都有显着差异。我们确定了在所有四个站点中表现始终优于或低于平均水平的出处。在生长良好且可能具有适应性的种子来源中，有来自波兰东部和中部高地、Sudety Mts、以及来自 Beskid Mts 的 Istebna 地区。Beskid Mountains 的其他种群表现一般至较差，所有高海拔种群均生长较差。本研究的结果有助于验证波兰挪威云杉种群遗传变异模式的知识，并指导有关云杉种植材料的管理决策。