福建林业科技2023，Vol.50Issue(4)：39-43,5.DOI:10.13428/j.cnki.fjlk.2023.04.007
毛红椿优树子代苗期生长性状测定与选择
Plus Trees Progeny Growth Traits Determination and Selection of Toona ciliate var.pubescens at Seedling Stage
摘要
Abstract
The genetic variation of seedling traits was analyzed,and the excellent families were primarily selected based on the com-parative analysis of DBH,seedling height,main root length,root biomass,stem biomass,leaf biomass,and whole plant biomass of one-year-old seedlings in 14 families of Toona ciliate var.pubescens,to provide the basis for the breeding and application.The results showed that there were very significant differences in growth traits among 14 families.The growth traits of 12 and 7 families performed well,whose ground diameter,seedling height,main root length,root biomass,stem biomass,leaf biomass,and whole plant biomass in-creased by 19.84％to 28.54％,24.38％to 36.32％,23.95％to 35.56％,23.03％to 33.82％,23.86％to 35.42％,25.93％to 38.52％and 23.65％to 34.99％,respectively,compared to the average.There was significant variation in every trait of T.ciliate var.pubescens family.The coefficient of variation of leaf biomass and seedling height reached 25.38％and 22.80％,respectively,in-dicating that the seedling height growth and leaf biomass indexes of 14 families can be used as an important evidence for early selec-tion.Comprehensive evaluation of multi-trait indexes at seedling stage,the superior families as follows:the families 7,12,3 and 8,which seedlings grew well and the root system was developed.The research results can provide reference for the breeding and appli-cation of improved varieties of T.ciliate var.pubescens.关键词
毛红椿/苗期测定/生长性状/家系选择Key words
Toona ciliate var.pubescens/seedling determination/growth traits/family selection分类
农业科技引用本文复制引用
林智勇..毛红椿优树子代苗期生长性状测定与选择[J].福建林业科技,2023,50(4):39-43,5.基金项目
福建省科技厅省属公益类科研院所基本科研专项(毛红椿种质资源收集保存与优良材料选育,2019R1009-4) （毛红椿种质资源收集保存与优良材料选育,2019R1009-4）
福建省林业科学研究院自主选题项目(闽林研[2015]73号) （闽林研[2015]73号）
南方山地用材林培育国家林业和草原局重点实验室资助 （）
