【摘要】 总结了近10 a来国内主要针叶树种优树选择技术研究现状,当前国内优树选择主要应用了优势木对比法、生长量绝对值法和小样地法,对数量指标主要选择的是与材积量相关的因子,如树高年增长量和胸径年增长量。在此基础上对优树选择技术的发展进行了探讨并提出新的观点:①系统调查地理变异,兼顾遗传因素和环境因素,使选择指标定量化,用数理统计的方法进行选择;②对多用途树种应根据不同的育种目标分指标评价和选择,必要时也可再进行综合性选择多用途目标的优树。更多还原

【Abstract】 Based on the review of elite tree selection techniques for main conifers in China in the past decade,the discussion of elite tree selection was carried out and the new viewpoints were put forward.At present elite tree selection methods in China were dominant tree comparison,growth absolute value and small sampling plot.Quantity criterion was according to the factors related to volume,such as annual height increment and annual DBH increment.Firstly,the elite tree selection was according to the pattern of variance in different places and the factors from genetics and environment.Secondly,the breeding aim was assessed according to individual traits if the selection is for multi-purpose species.更多还原