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子代测定是林木选择育种的一个重要环节,是评价表型选择效果的唯一依据,并能为今后的育种工作提供值得注意的信息。近些年,我国育种工作进展较快,大多数树种的子代测定工作都在进行之中,有的树种已发表过于代测定初报。但对于红松子代测定,迄今尚未见报道。本文对辽宁省森林经营研究所1984年在辽宁东部山区的3处子代测定林,做了较全面的统计分析。从中可看出,各家系的子代在3年生时,已表现出明显的差异,并有较理想的育种效果,现总结如下。
Offspring determination is an important part of forest tree selection and breeding, and is the only basis for evaluating phenotypic selection effect. It can also provide noteworthy information for future breeding work. In recent years, the breeding work in our country has progressed rapidly, and most of the tree species are undergoing the work of determination of offspring. Some tree species have been published for the first time on behalf of the determination. However, for the determination of Korean pine progenies, so far no reported. In this paper, Liaoning Institute of Forest Management in 1984 in the eastern mountainous area of Liaoning three offspring measured forest, to do a more comprehensive statistical analysis. It can be seen from this that the offspring of the various families have shown obvious differences at the age of three years and have better breeding results. The results are summarized as follows.