红花香椿生长和材性性状变异及优良家系多性状选择  

Variation of Growth and Wood Property Traits of Toona fargesii and Multi-Trait Selection of Superior Families

作　　者：林杰 华克达 缪强 楼科勋 郑成忠 邱勇斌 张能军 胡卫明 姜景民[4] 刘军[4] 陈永辉 汪燕明 Lin Jie;Hua Keda;Miao Qiang;Lou Kexun;Zheng Chengzhong;Qiu Yongbin;Zhang Nengjun;Hu Weiming;Jiang Jingmin;Liu Jun;Chen Yonghui;Wang Yanming(Nation Key Laboratory of Forest Tree Genetic Breeding(Northeast Forestry University),Harbin 150040,P.R.China;Fuyang District Agriculture and Rural Bureau,Hangzhou;Kaihua Forest Farm;Research Institute of Subtropical Forestry,Chinese Academy of Forestry;Kaihua County Forestry Development Co.,Ltd)

机构地区：[1]林木遗传育种全国重点实验室(东北林业大学),哈尔滨150040 [2]杭州市富阳区农业农村局 [3]开化县林场 [4]中国林业科学研究院亚热带林业研究所 [5]开化县林业发展有限公司

出　　处：《东北林业大学学报》2025年第5期25-30,49,共7页Journal of Northeast Forestry University

基　　金：国家重点研发计划课题(2021YFD2200305);中央级公益性科研院所基本科研业务费专项(CAFYBB2020SZ004)。

摘　　要：为了解红花香椿半同胞家系的生长和材性性状的遗传变异规律,筛选出在生长和材性方面表现优异的家系。以浙江开化县林场的15年生红花香椿(T.fargesii)半同胞家系试验林为研究对象,测定红花香椿树高、胸径、材积等生长性状,并利用Lignostation生长轮分析工作站系统,测量平均年轮密度、平均早晚材密度等材性性状,通过方差分析、相关性分析和主成分分析等统计方法分析红花香椿生长和材性性状的遗传变异规律。结果表明:红花香椿家系间生长轮宽度、早材宽度、晚材宽度、平均早材密度、平均晚材密度、平均年轮密度、早晚材比例、边材密度、边材宽度、树高、胸径、材积和心材比例等13个生长和材性性状的差异均达极显著水平,心材密度和心材宽度的差异则达到显著水平,并具有较高的遗传稳定性。红花香椿半同胞家系的生长轮宽度与早材宽度、晚材宽度、边材宽度、树高、胸径和材积显著正相关,与早晚材比例显著负相关;平均早材和晚材宽度均与树高、胸径和材积之间显著正相关;平均晚材宽度还与边材宽度和边材密度显著正相关;心材宽度和密度均与树高和胸径显著正相关。生长轮宽度、晚材宽度、边材密度、心材密度、树高、胸径和材积等7个性状是红花香椿品质和经济性状的主要代表,并通过构建这些性状的综合指数选择方程,对红花香椿所有家系进行了综合评价,最终选出了2个(51号、仙居)符合改良标准的优良家系,两个家系在生长轮宽度、晚材宽度、边材密度、心材密度、树高、胸径和材积方面的平均遗传增益分别为27.89%、40.76%、7.33%、5.38%、8.11%、7.84%和13.67%。To understand the genetic variation patterns of growth and wood property traits in half-sibling families of Toona fargesii and screen out families with excellent performance in growth and wood properties,a 15-year-old half-sibling family experimental forest of T.fargesii in Kaihua County Forest Farm,Zhejiang Province,was selected as the research object.Growth traits such as tree height,diameter at breast height(DBH),and volume of T.fargesii were measured.The Lignostation annual ring analysis workstation system was used to measure wood property traits such as average annual ring density and average early-and late-wood density.Statistical methods such as analysis of variance,correlation analysis,and principal component analysis were employed to analyze the genetic variation patterns of growth and wood property traits of T.fargesii.The results showed that there were extremely significant differences among the families of T.fargesii in 13 growth and wood property traits,including annual ring width,early-wood width,late-wood width,average early-wood density,average late-wood density,average annual ring density,early-to-late-wood ratio,sapwood density,sapwood width,tree height,DBH,volume,and heartwood ratio.The differences in heartwood density and heartwood width reached a significant level,and these traits had high genetic stability.In the half-sibling families of T.fargesii,the annual ring width was significantly positively correlated with early-wood width,late-wood width,sapwood width,tree height,DBH,and volume,and significantly negatively correlated with the early-to-late-wood ratio.Both the average early-and late-wood widths were significantly positively correlated with tree height,DBH,and volume.The average late-wood width was also significantly positively correlated with sapwood width and density.Both heartwood width and density were significantly positively correlated with tree height and DBH.Seven traits,namely annual ring width,late-wood width,sapwood density,heartwood density,tree height,DBH,and volume,were

关 键 词：红花香椿 生长性状 材性性状 遗传分析 家系选择 

分 类 号：S722.5[农业科学—林木遗传育种]