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马尾松是我国南方的主要造林树种,分布广,适应性强,木材及松脂等付产品都有很高的利用价值。为了研究不同种源的地理变异规律,为各地区调拨种子提供科学依据,选择各地的最优种源及丰富基因库,为进一步开展林木良种提供原始材料,根据全国林木良种科研协作计划,我省参加了全国马尾松种源试验,全省设丹徒县长山林场、盱眙县林场及本所三个试验点。现将本所育苗试验作初步小结。 一、试验地概况 试验地设置在南京市江宁县境内的省林科所,东径118°40’,北纬31°50’。属北亚热带气候,年平均气温15℃左右,年平均降雨量1000毫米,大多集中在 6- 9月份。 试验苗圃为丘陵山区冲田。土壤是中壤质冲积土,土壤营养状况见表1。
Pinus massoniana is the main afforestation species in South China. It has wide distribution and strong adaptability. The wood and pine resin products have high utilization value. In order to study the law of geographical variation of different provenances and provide the scientific basis for the transfer of seeds in various regions, select the best provenances and rich gene pools from all over the world, provide the raw materials for further development of improved varieties of forest trees. According to the national collaborative research plan for improved varieties of forest trees, Participated in the national provenance trial of Masson pine, the province set Danshu Changshan Forest Farm, Xuyi County Forest Farm and the three test points. Now this nursery test for the first summary. First, the experimental site profile Experimental set up in Nanjing Jiangning County Forestry Bureau, east path 118 ° 40 ’, latitude 31 ° 50’. Is a northern subtropical climate, the annual average temperature of about 15 ℃, the average annual rainfall of 1000 mm, mostly concentrated in the 6-9 months. Experimental nursery for the hilly mountain area Okita. Soil is alluvial loam soil, soil nutrient status in Table 1.