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杉木红心材性状遗传变异规律研究

更新时间 2009-11-25 17:31:26 点击数:

杉木红心材性状遗传变异规律研究
Genetic Variation on the Trait of Red-Colored Heartwood of Cunninghamia Lanceolata (Lamb.) Hook
【摘要】 本论文以1998年在福建省顺昌县洋口国有林场营造的红心杉人工林和2005年在福建省顺昌洋口国有林场和官庄国有林场营造的红心杉木单亲子代测定林为试验材料,对红心杉生长和材性性状的变异、遗传控制、性状间的简单相关等进行了研究。结果如下:1、人工林杉木红心率变异。研究的红心杉人工林的红心率平均值为30.07%,变异系数为34.55%;普通杉木红心率均值为26.73%,变异系数为41.02%;红心率与树高,胸径和材积均呈及显著的正相关关系,与胸径的相关系数最高(r=0.73558),而与微纤丝角和密度的相关未达到显著水平。2、子代测定林各性状的遗传变异。两个地点多年度方差分析结果显示:除了年度与家系之间的交互效应没达到显著差异之外,其他互做都高度显著。单地点单年份的方差分析结果表明,洋口试验点4年生子代家系在树高,离地面50cm处的直径等主要生长性状上存在明显差异,红心率在家系间的差异达到了显著水平。3、子代测定林各性状相关分析。4年生时的红心杉生长性状间均呈极显著的正相关关系;红心率与树高,D0.5呈及显著的正相关关系。4、选出9号等8个速生优良家系,选出红心材比率高的杉木优良家系8个,选出13号等生长、材性兼优的杉木优家系8个,选出生长、材性兼优的红心杉单株18株。 

【Abstract】 The color of the heartwood, especially, the bright and red-brownish-colored of Chinese fir heartwood has both the commercial benefits and esthetics value for solid wood utilization. However, there were fewer reports published on this topic. In this thesis, we reported results from the examination on a 10 years old plantation and two 5years old open-pollinated family genetic tests from the Chinese fir seed orchard with Red Color Heartwood parents, to understand the general information about the variation of heartwood color and genetic variation among the 40 families. The research materials planted on the Yangkou State Forest Farm, and Guanzhuang Forest Farm, Fujian Province, respectively. The main results were as follows:1. Variation on the trait of red-colored heartwood in a ten years plantation planted with materials selected as high ratio red-colored heartwood. The average percentage of red-colored heartwood of plantation with selected materials was 30.07%, the C.V. was 34.55%; But on unselected local Chinese fir (CK) was 26.73% for red-colored heartwood and the C.V. was 41.02%. There was very significant positive phonotypical correlation between the ratio of red-colored heartwood, and with the height, with DBH, respectively. There was no significant correlation between the microfibril and the height, DBH, Volume and either with the wood basic density.2. Genetic variation on growth traits. There were significant difference on the height and DBH among families, on the two sites and the 4 years repeated observations. There were significant difference not only existed on the height and diameter at 50cm above the ground, but also on the ratio of the red-colored heartwood among families at Yangkou testing.3. Correlation between traits of growth and the red-colored hear-wood ratio. The remarkable positive correlation were existed between the red-colored hear-wood ratio and the growth traits at all the four years, the correlation between the red colored heartwood ratio and height is 0.08505, and 0.07735 between red colored heartwood ratio and diameter at 50cm above the ground.4. Based on the progeny testing, there were eight families with the characters of fast growing, and eight families with higher ratio of red-colored heartwood, in addition eight families with both fast growing and higher ratio on red-colored heartwood to have been selected. There were 18 individuals with features of fast growing and higher ratio on red-colored heartwood to be primary chosen ascandidates of clonal propagation. 

【关键词】 杉木; 红心材比率; 遗传变异; 子代测定; 微纤丝角
【Key words】 Cunninghamia lanceolata; Ratio Red-colored heartwood ; Genetic control; Progeny testing; Microfibril Angle
  杉木红心材性状遗传变异规律研究

致谢 3-4
摘要 4-5
Abstract 5-6
第一章 研究领域的现状与进展综述 11-17
    1.1 林木红心材类型的研究进展 11-12
    1.2 木材基本密度遗传变异的研究 12-13
    1.3 木材微纤丝角遗传变异研究 13-14
    1.4 材性早期预测研究 14
    1.5 生长与材性性状间的相关和综合遗传改良研究 14-16
    1.6 本研究意义和目的 16-17
第二章 红心材杉木人工林变异规律研究 17-22
    引言 17
    2.1 试验地概况 17
    2.2 材料来源与方法 17-18
        2.2.1 来源 17
        2.2.2 方法 17-18
            2.2.2.1 材性测试方法 17-18
            2.2.2.2 数据统计方法 18
    2.3 结果与分析 18-21
        2.3.1 生长性状的方差分析 18
        2.3.2 木材品质的变异规律 18-19
        2.3.3 性状间的相关分析 19-21
    2.4 小结与讨论 21-22
第三章 红心材杉木单亲子代测定林生长性状遗传变异研究 22-33
    引言 22
    3.1 材料与方法 22-26
        3.1.1 试验地概况 22-23
        3.1.2 试验材料 23-25
        3.1.3 田间试验设计 25
        3.1.4 试验林调查与取样方法 25
        3.1.5 数据分析方法 25-26
    3.2 结果与分析 26-32
        3.2.1 两个试验点多年度综合分析 26-27
        3.2.2 家系间生长性状的变异 27-31
        3.2.3 家系生长性状的遗传力和遗传增益估算 31-32
    3.3 小结 32-33
第四章 红心材杉木单亲子代木材品质性状遗传变异研究 33-47
    引言 33-34
    4.1 家系木材红心材比率的遗传变异 34-36
        4.1.1 材料与方法 34
        4.1.2 结果与分析 34-36
            4.1.2.1 家系红心率性状的变异 34-36
            4.1.2.2 家系红心率性状的遗传力和遗传增益估算 36
    4.2 家系木材基本密度的遗传变异 36-39
        4.2.1 材料与方法 37
        4.2.2 结果与分析 37-39
            4.2.2.1 家系基本密度的变异 37-38
            4.2.2.2 家系基本密度性状的遗传力和遗传增益估算 38-39
    4.3 家系木材髓心分布遗传变异 39-41
        4.3.1 材料与方法 39-40
        4.3.2 结果与分析 40-41
            4.3.2.1 家系偏心率性状的变异 40-41
            4.3.2.2 家系偏心率性状的遗传力和遗传增益估算 41
    4.4 家系微纤丝角的遗传变异 41-45
        4.4.1 材料与方法 42-43
            4.4.1.1 材料 42
            4.4.1.2 X射线衍射法 42-43
        4.4.2 结果与分析 43-45
            4.4.2.1 家系微纤丝角性状的变异 43-44
            4.4.2.2 家系微纤丝角性状的遗传力和遗传增益估算 44-45
    4.5 小结 45-47
        4.5.1 家系红心率遗传变异 45
        4.5.2 家系基本密度遗传变异 45
        4.5.3 家系偏心率遗传变异 45-46
        4.5.4 家系微纤丝角遗传变异 46-47
第五章 红心材杉木单亲子代测定林性状相关研究 47-49
    引言 47
    5.1 材料与方法 47
        5.1.1 材料 47
        5.1.2 数据统计方法 47
    5.2 家系性状相关性研究结果 47-48
    5.3 家系性状相关性研究结果讨论 48-49
第六章 红心杉单亲子代优良家系和个体的选择 49-53
    引言 49
    6.1 速生优良杉木家系选择 49
    6.2 木材红心材比率高的杉木优良家系选择 49-50
    6.3 生长和材性兼优的优良家系联合选择 50-51
    6.4 速生、红心材比率高的杉木优良个体选择 51
    6.5 小结 51-53
第七章 总结与讨论 53-55
    7.1 总结 53-54
    7.2 讨论 54-55
参考文献 55-58
详细摘要 58-61

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