杂种落叶松生长变异分析  

Study on the Growth Variation of Hybrid Larch

作　　者：李金泉 侯丹[2] LI Jinquan(Bohai Forest Seed orchard in Ning′an City,Mudanjiang 157400,China)

机构地区：[1]宁安市渤海林木种子园,黑龙江牡丹江157400 [2]东北林业大学林木遗传育种国家重点实验室,黑龙江哈尔滨150040

出　　处：《安徽农学通报》2020年第16期91-93,共3页Anhui Agricultural Science Bulletin

基　　金：杂种落叶松种子园营建技术和优良家系推广与示范([2017]06号)。

摘　　要：以4个地点10年生的杂种落叶松家系试验林为研究对象,通过变异分析、方差分析及稳定性分析,筛选生长迅速、适应性强及稳定性好的家系。结果表明:树高、胸径及材积性状存在丰富的变异,变异系数依次为12.45%、16.99%及38.50%。树高、胸径及材积在试点间差异极显著。材积性状在家系水平上差异极显著,遗传力均值为88.81%,遗传增益均值为48.66%。根据材积多重比较及树高与材积稳定性分析结果,兴6×和6及兴5×兴9为高产高稳家系,材积预期增产18.02%、12.64%.Taking the 10-year-old hybrid larch families test plantation infourtestsites as the research object,the main analysis methods used inthis study that included variation analysis,variance analysis and stability analysis.We finally selected thefamilies with rapid growth,strong adaptability and good stability.The results showed that there were abundance variations in tree height,diameter at breast height(DBH)and volume traits,and the values of the variation coefficient were 12.45%,16.99% and 38.50%,respectively.The tree height,DBH and volume had extremely significant differences amongthefoursites.The volume had extremely significant differences at the family level,the meanofheritabilitywas88.08%,and the meanof genetic gains was 48.66%.Finally,L.gmelinii6×he6 and L.gmelinii5×L.gmelinii9were selected asthe high-production and high-stability families according to the results of multiple comparison and stability analysis andthe expected increase were 18.02%and 12.64%.

关 键 词：杂种落叶松 生长性状 遗传变异 稳定性分析 

分 类 号：S722.3[农业科学—林木遗传育种]