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侧柏(Platyc1adus orientalis (L.)Franco)是我国柏科植物中分布最广的种,分布区内复杂的自然条件提供了侧柏群体变异的条件。为研究侧柏地理变异规律、为确定种子的合理调拨制度及为各地筛选最佳种源。全国侧柏协作组于1983年统一布置了种源试验。本文根据兴城试验点苗期3年的材料整理。一、试验地自然条件辽宁兴城试验点属侧柏种源试验点北界,辽西低山区。据兴城气象站30年(1951—1980)的观测记录,该地平均气温8.7℃,1月平均气温-8.7℃,7月23.9℃,10℃以上积温3425.8℃,早霜10月上旬,晚霜4
Platycladus orientalis (L.) Franco is the most widely distributed species of Platycladus orientalis (L.) Franco. The complicated natural conditions in the distribution provide the conditions for the variation of P. orientalis population. In order to study the law of geographical variation of oriental arborvitae, to determine the reasonable allocation of seeds and to screen the best provenances for all the regions. National Arborvitae collaborative team in 1983 unified arrangement of provenance test. This article Xingcheng test point seedling three years of material finishing. First, the experimental natural conditions Liaoning Xingcheng test point is Platycladus orientalis test point north boundary, western Liaoning low mountain area. According to observational records of Xingcheng weather station for 30 years (1951-1980), the average temperature of the area is 8.7 ° C, the average temperature in January is 8.7 ° C, July 23.9 ° C, and the temperature above 10 ° C is 3425.8 ° C, early frost in early October and late frost