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前言 林木经济成熟期长,往往选种效果的评定需观察15—20年以上。因此,世界各国都加强林木早期选种预测的研究。近十年以来,对林木生长预测的问题,引起了人们的高度重视,做了大量的研究工作。为了加速杉木良种选育工作的进程,摸索其早期遗传优势的规律,从1964年起,我们进行了杉木早期选种的研究,其途径主要是通过苗期和晚期生长相关性的分析,幼树形态指标的测定和分析,来判断杉木早期选种的成效,作为后代测定工作中淘汰筛选的科学依据。
Foreword Tree mature economy is long, the effect of selection often need to assess the effect of observation of more than 15-20 years. Therefore, all countries in the world have strengthened the research on early forest selection prediction. In the recent ten years, the prediction of tree growth has aroused people’s attention and done a great deal of research work. In order to accelerate the progress of seed selection and breeding of Cunninghamia lanceolata and to explore the law of its early genetic advantage, we conducted a study on the early seed selection of Cunninghamia lanceolata since 1964 through the analysis of the correlation between seedling growth and late growth. Morphological indicators of the determination and analysis to determine the effectiveness of early fir seed selection as a scientific basis for the screening of offspring screening work.