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油松是营造用材林,固沙林,水土保持林,水源涵养林,农田防护林,牧场防护林的重要树种。但由于种源混杂,致使个别油松人工林生长缓慢,材质低劣。为了进一步提高油松人工林的产量、质量和抗逆性,挖掘和保存油松的优良基因,寻找最适宜的种源;为划分油松种苗调拨区和营建生产性种子园提供依据,我们于1983年春,在中国林科院林研所的指导下,开展了全国22个产地油松种源试验。现将苗期试验情况总结如下。
Pinus tabulaeformis is an important tree species for timber plantation, sand fixation, soil and water conservation forest, water conservation forest, farmland shelter forest and pasture shelter. However, due to mixed provenances, individual Pinus tabulaeformis plantations grew slowly and were of poor quality. In order to further improve Pinus tabulaeformis plantation yield, quality and resistance, dig and preserve the excellent gene of Pinus tabulaeformis and find the most suitable provenance; To provide the basis for the allocation of Pinus tabulaeformis seedling planting and construction of productive seed orchards, we In the spring of 1983, under the guidance of the Institute of Forestry of China Academy of Forestry, 22 provenances of Pinus tabulaeformis were conducted in China. The seedling test situation is summarized as follows.