龙榛几个主要数量性状的遗传力与遗传增益研究  

Study on Heritability and Genetic Gain of Some Main Quantitative Characters of Long Hazel( Corylus heterophylla × C. avellana)

作　　者：龙作义[1] 逄宏扬[1] 李雪[1] 李红莉[1] 

机构地区：[1]黑龙江省牡丹江林业科学研究所,黑龙江牡丹江157010

出　　处：《安徽农业科学》2013年第33期12886-12887,12899,共3页Journal of Anhui Agricultural Sciences

基　　金：黑龙江省科技厅科技攻关项目(GB07B304);中央林业财政科技推广示范专项([2010]TQ102号);黑龙江省森林工业总局科技专项(sgzj2010001)

摘　　要：遗传测定是经济林良种选育的重要环节之一,也是榛子育种中的核心工作之一。该文对选育出的龙榛5个品系,以平榛为对照样本,进行遗传力与遗传增益测评与分析。结果表明,龙榛5个品系在主要性状上都表现出较高的遗传力和遗传增益。龙榛5个品系都有较高的遗传力,其中单果重为0.96、树高为0.65、冠幅为0.88;遗传增益以龙榛1号为最优,龙榛5号和龙榛4号次之,龙榛2号和龙榛3号略低。The genetic test is art important part in the economic forest breedlng, also the core of the hazelnut breeding. This paper tested and evaluated the heritability and genetic gain of 5 kind of Long hazel （Corylus heterophylla x C. avellana） strains with hazel as the control sample. The results showed that the heritability and genetic gain on main characters of Long hazel were higher. 5 strains of Long hazel had high heritabili- ty, fruit weight per hazelnut was 0.96, tree height was 0.65, crown diameter was 0.88. The genetic gain of Long hazel No. 1 strain was the best, followed by Long hazel No. 5 strain and Long hazel No. 4 strain, but Long hazel No. 2 strain and Long hazel NO. 3 strain were lower.

关 键 词：龙榛 数量性状 遗传力 遗传增益 

分 类 号：S722.3[农业科学—林木遗传育种]