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以位于福建卫闽国有林场10年生杉木80个半同胞家系的子代遗传测定林为材料,以ASReml程序进行林木遗传试验的空间分析,并分别利用试验设计模型和试验设计与空间分析整合模型对胸径生长进行遗传分析,检验空间分析对林木遗传试验效率的影响。模型选择结果表明,试验设计与空间分析整合模型中,空间效应完全取代了试验设计效应,模型可简化为空间分析模型。与试验设计模型相比,空间分析模型的AIC(赤池最小信息量准则)减少了129.2,模型的拟合程度更好;同时,加性遗传方差增加了16.5%,残差方差降低了11.6%,单株狭义遗传力增加了31.3%;行和列上的空间自相关参数分别为0.89和0.96,试验地点有明显的整体变异趋势。
Based on the genetic analysis of the offspring of 80-year-old Chinese fir ten-year-old siblings at the State-owned Forest Farm in Fujian Min-min, the spatial analysis of the tree genetic test was conducted using the ASReml program. The model was used to integrate the experimental design and spatial analysis DBH growth for genetic analysis to test the impact of spatial analysis on forest genetic testing efficiency. The result of model selection shows that the spatial effect completely replaces the experimental design effect in the experimental design and spatial analysis integration model, and the model can be simplified as the spatial analysis model. Compared with the experimental design model, the AIC of the spatial analysis model is reduced by 129.2, and the fitting degree of the model is better. Meanwhile, the additive genetic variance increases by 16.5% and the residual variance decreases by 11.6% The narrow heritability of plants increased by 31.3%. The spatial autocorrelation parameters of rows and columns were 0.89 and 0.96, respectively. There was a clear trend of overall variation in the test sites.