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    魏嘉彤, 陈思琪, 芦贤博, 张非凡, 潘振海, 柳妍如, 葛丽丽, 赵曦阳. 基于生长与木材性状的红松优良种源评价选择[J]. 北京林业大学学报, 2022, 44(3): 12-23. DOI: 10.12171/j.1000-1522.20210247
    引用本文: 魏嘉彤, 陈思琪, 芦贤博, 张非凡, 潘振海, 柳妍如, 葛丽丽, 赵曦阳. 基于生长与木材性状的红松优良种源评价选择[J]. 北京林业大学学报, 2022, 44(3): 12-23. DOI: 10.12171/j.1000-1522.20210247
    shu
    Wei Jiatong, Chen Siqi, Lu Xianbo, Zhang Feifan, Pan Zhenhai, Liu Yanru, Ge Lili, Zhao Xiyang. Evaluation and selection of excellent provenances of Pinus koraiensis based on growth and wood properties[J]. Journal of Beijing Forestry University, 2022, 44(3): 12-23. DOI: 10.12171/j.1000-1522.20210247
    Citation: Wei Jiatong, Chen Siqi, Lu Xianbo, Zhang Feifan, Pan Zhenhai, Liu Yanru, Ge Lili, Zhao Xiyang. Evaluation and selection of excellent provenances of Pinus koraiensis based on growth and wood properties[J]. Journal of Beijing Forestry University, 2022, 44(3): 12-23. DOI: 10.12171/j.1000-1522.20210247
    shu

    基于生长与木材性状的红松优良种源评价选择

    Evaluation and selection of excellent provenances of Pinus koraiensis based on growth and wood properties

      摘要
    • 摘要:
        目的  通过对红松种源评价选择，为红松遗传改良提供理论基础。
        方法  本研究以黑龙江帽儿山实验林场的26个红松种源为材料，对其生长性状（树高、胸径、地径、通直度、分枝角、冠幅、材积）和木材性状（木材密度、纤维长、纤维宽、含碳量以及纤维素、半纤维素、木质素、灰分质量分数）进行测定和分析。
        结果  （1）方差分析结果表明：各性状在种源间的差异均达到极显著水平（P < 0.01）；除木材密度、纤维长和纤维素、半纤维素、灰分质量分数外，其他性状的区组效应均达到极显著差异水平（P < 0.01）；除木材密度外，其他性状的区组 × 种源互作效应均存在极显著差异水平（P < 0.01）。（2）各性状的表型变异系数的变化范围为2.53% ~ 33.47%；各性状的遗传力较高，变化范围为0.617 ~ 0.975。（3）相关性分析结果表明，各生长性状间相关性均达显著水平，而木材性状间以及生长性状与木材性状之间的相关性较弱。（4）主成分分析结果表明，前5个主成分累计贡献率为80.16%，结合主成分分析中主成分Ⅰ和主成分Ⅱ结果，利用多性状综合评价法对26个红松种源进行筛选，以8%的入选率，初步选择出2个生长性状优良的种源，各生长指标遗传增益范围为12.52% ~ 35.93%；初步选择出木材性状良好的2个优良种源，各木材性状遗传增益范围为−7.21% ~ 11.55%，其中木质素质量分数的遗传增益为−7.21%。
        结论  本研究基于红松的生长和木材性状，评价选择出4个优良种源，可为红松的推广使用提供基础，研究方法可为红松及其他树种良种选育提供参考。

       

      Abstract:
        Objective  This paper aims to provide theoretical basis for genetic improvement of Pinus koraiensis by evaluating and selecting provenances.
        Method  The growth traits (tree height, DBH, basal diameter, straightness, branch angle, crown width, volume of wood) and wood traits (wood density, fiber length, fiber width, carbon content, cellulose, hemicellulose, lignin, ash mass fraction) of 26 P. koraiensis provenances in Maoershan Experimental Forest Farm of Shangzhi City, Harbin City, Heilongjiang Province of northeastern China were measured and analyzed.
        Result  (1) The results of variance analysis showed that the differences of each trait among provenances reached the extremely significant level (P < 0.01). Except for the wood density, fiber length, cellulose, hemicellulose, lignin and ash mass fraction, the group effects of other traits reached extremely significant differences (P < 0.01). Except for wood density, there were extremely significant differences in the group × provenance interaction effects of other traits (P < 0.01). (2) The phenotypic variation coefficient was 2.53%−33.47%. The heritability of each trait was high, the range of variation was 0.617−0.975. (3) The correlation analysis of growth traits showed significant level, and the correlations among all wood traits and between growth traits and wood traits were weak. (4) Principal component analysis results showed that the cumulative contribution of the first five principal components was 80.16%. Combined with the results of principal component Ⅰ and principal component Ⅱ in principal component analysis, 26 provenances of P. koraiensis were further evaluated. With the selection rate of 8%, two provenances with excellent growth traits were preliminarily selected, and the genetic gain range of each growth index was 12.52%−35.93%. Two excellent provenances with excellent wood traits were preliminarily selected, and the genetic gain range of each wood trait was −7.21%−11.55%, and the genetic gain of lignin mass fraction was −7.21%.
        Conclusion  Based on the growth and wood traits of P. koraiensis, four excellent provenances were evaluated and selected, which can provide basis for the popularization and application of P. koraiensis. The research method can provide reference for breeding of P. koraiensis and other tree species.

       

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