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根据东北林业大学帽儿山实验林场长白落叶松两次全分布区种源试验(15和10年生)子代生长性状,通过方差分析,种源与立地的联合分析,多性状综合指数选择等分析方法,将全部10个参试种源划分为低产稳产型(天桥岭、大石头、鸡西种源);高产非稳产型(小北湖种源);和界于这二者之间的中产稳产型(和龙、白河、露水河、穆棱、大海林种源)等三种类型,在种源早期选择可行性与可靠性分析基础上,以包括生长、形态、适应性、抗性及种子品质性状在内的综合指标选择法和生长性状差异显著性测验结果,选出了小北湖种源为帽儿山实验林场及毗邻地区最佳种源,小北湖种源15年生、10年生材积分别超出对照(各种源平均值)78.25％和128.31％;超出最差种源221.6％和220.21％。对种源生长性状的遗传力及遗传增益进行了估算,并讨论了优良种源的遗传改良策略及推广优良种源的生产意义和社会效益。
According to the growth traits of progeny in two full distribution areas of Larix olgensis at Maoershan Experimental Forest Farm of Northeast Forestry University, variance analysis, joint analysis of provenances and sites, selection of multi-index of comprehensive indices Method, all 10 tested provenances were divided into low and stable yield type (Tianqiao Ridge, Big Stone, Jixi provenance); high-yield unsteady yield (Xiaobeihu provenance); and between the two in the middle of the stable yield (Including Heilongjiang, Shirakawa, Lushuihe, Muling and Hailin provenance). Based on the feasibility and reliability analysis of early provenance of provenances, including the growth, morphology, adaptability, resistance and seed quality Traits, comprehensive index selection method and growth trait significant difference test results, selected the Xiaobeihu provenance as the best provenance in Maoershan Experimental Forest Farm and the adjacent areas, the Xiaobeihu provenances 15-year-old, 10-year-old products were beyond Control (average of various sources) 78.25% and 128.31%; 221.6% and 220.21% of the worst provenances. The heritability and genetic gain of provenances were estimated, and the genetic improvement strategies of good provenances and the productive and social benefits of promoting good provenances were discussed.