黧蒴栲生长材性热值灰色关联分析及优良半同胞家系选择  

Grey Relational Analysis on Growth,Wood Properties and Calorific Value and Selection of the Superiority Half-sib Families of Castanopsis fissa

作　　者：童方平[1] 蒋燚[2] 刘振华[1] 黄荣林[2] 李贵[1] 陈瑞[1] 卡来木汗.马那甫 

机构地区：[1]湖南省林业科学院,长沙410004 [2]广西林业科学研究院,南宁530001 [3]新疆托克逊县郭勒布衣乡林业管理站,新疆吐鲁番838100

出　　处：《中国农学通报》2014年第1期11-15,共5页Chinese Agricultural Science Bulletin

基　　金：国家公益专项"高热能固体燃料树种新品种选育技术研究"(200904036)

摘　　要：为科学选择生长、材性、热值多性状优良的黧蒴栲半同胞家系,采用随机完全区组试验方法,通过对6年生家系生长测定与材性、热值分析,运用灰色关联度分析模型证实木材基本密度与生长性状关联度较高。利用木材材积、木材密度和热值三性状计算得出黧蒴栲半同胞家系综合选择指数为I=0.4480X1＋0.5395X2＋0.5762X3,指数遗传力为0.8158,均值化综合育种值选择进展△H=0.1693。以综合选择指数均值加1.25倍标准差的指数作为适用于黧蒴栲半同胞家系材积、木材密度、热值多性状综合选择的指标,有5个半同胞家系即：PG07、RS09、TD01、RS08、PG08入选,其材积、基本密度、热值增益分别为156.33%~391.78%、12.70%~25.22%、15.81%~31.80%。黧蒴栲半同胞家系初次选择效果十分显著,可为黧蒴栲种子园的营建和制定遗传改良策略提供技术依据。In order to scientific select the growth,wood properties and calorific value of excellent half-sib families of Castanopsis fissa,by applying randomized block design approach,through six-year old half-sib families＇ growth test and analysis of wood properties and calorific value,and using the gray relational analysis model verified the wood density had a high degree association with its growth trait.The comprehensive selection index was I=0.4480X1 ＋0.5395X2 ＋0.5762X3,obtained by computing the volume,density and calorific value.The index heritability and △H were 0.8158,0.1693 respectively.The index calculated with the average comprehensive selection index plus 1.25 times standard deviations could be used as the adoptable index for selection of volume,density and calorific value of half-sib families of Castanopsis fissa.There were five half-sib families have been selected（PG07,RS09,TD01,RS08,PG08） as quality families.The gains of volume,density and calorific value were 156.33%-391.78%,12.70%-25.22% and 15.81%-31.80%,respectively.The half-sib families＇ initial selection effects were quite obvious.The conclusions provided a scientific basis for building seed orchard and developing genetic improvement strategy.

关 键 词：材性 热值 灰色关联度 综合选择指数 半同胞家系 黧蒴栲 

分 类 号：S722[农业科学—林木遗传育种]