梓叶槭半同胞家系苗期生长性状遗传分析  

Genetic Analysis of Growth Characteristics of Acer catalpifolium Half-sib Family at Seedling Stage

作　　者：李佳蔓[1] 鲁佳霖 何春菊 曹昆彬 陈炙[1] 黄振[1] LI Jiaman;LU Jialin;HE Chunju;CAO Kunbin;CHEN Zhi;HUANG Zhen(Ecological Restoration and Conservation on Forest and Wetland Key Laboratory of Sichuan Province,Sichuan Academy of Forestry,Chengdu 610081,China;Sichuan Minzu College,Kangding 626001)

机构地区：[1]四川省林业科学研究院,森林和湿地生态恢复与保育四川重点实验室,四川成都610081 [2]四川民族学院,四川康定626001

出　　处：《四川林业科技》2021年第4期68-72,共5页Journal of Sichuan Forestry Science and Technology

基　　金：四川省省财政专项项目(2020CZZX19);中央财政林业科技推广示范项目(KC2020ZYTG03)。

摘　　要：研究梓叶槭苗期的生长表现,筛选苗期生长性状表现好的家系,为梓叶槭的保护和开发提供参考。以梓叶槭平武种群的15个半同胞家系播种苗为研究对象,分析和比较了苗高和地径性状的生长情况。结果表明,梓叶槭半同胞家系苗高和地径性状均达到了显著差异;苗高和地径家系遗传力较大,均在0.9以上;苗高和地径呈极显著正相关;苗高和地径遗传系数分别达到30.59%和29.06%,遗传改良潜力较大;筛选了2个优良半同胞家系。In order to provide reference for the protection and development of Acer catalpifolium,the growth performance of Acer catalpifolium at seedling stage was studied,and the families with good growth traits at the seedling stage were screened.Fifteen half-sib families of Acer catalpifolium were used as the research object,the growth of seedling height and ground diameter traits were analyzed and compared.The results showed that there were significant differences in seedling height and ground diameter of half-sib families of Acer catalpifolium.The family heritability of seedling height and ground diameter was greater than 0.9.There was a significant positive correlation between seedling height and ground diameter.The genetic coefficients of seedling height and ground diameter reached 30.59%and 29.06%,respectively,with great potential for genetic improvement.Two excellent half-sib families were screened.

关 键 词：梓叶槭 半同胞家系 苗期测定 遗传分析 

分 类 号：S792.99[农业科学—林木遗传育种]