江南油杉种源家系早期生长分析
|
摘要
对广东省乐昌市江南油杉(Keteleeria cyclolepis)种源/家系试验林内1 a生苗木和2 a生幼树生长开展试验分析,统计分析结果表明:苗木和幼树的种源效应和种源内的家系效应均达到显著或极显著水平(P<0.05,P<0.01),开展优良种源和家系选择可行;相关性分析表明苗木与幼树生长性状存在极显著的相关关系(α=0.01),苗木生长表现优良的种源/家系,在试验林中生长表现也较优;遗传参数估算研究表明,种源遗传力略大于家系遗传力,但各测定遗传力均处于中等偏下水平;早期优良种源、家系选择研究中,根据各种源/家系的高度和地径生长表现,选出优良种源2个,优良家系6个,优良家系均产于优良种源内。
Data of seedling and trial growth of Keteleeria cyclolepis were analysed in the study. The results showed that provenances effect and family within provenances effect were significant or highly significant in both seedling and trial, indicating provenances and families selection were feasible. Highly significant relationship existed between seedling and trial early growth, provenances and families growed well in seedling, also showed advantage in trial. Provenances hertiability was greater than family hertiability, but both were under medium level. According to height and diameter of ground height of the provenances and family, 2 superior provenances and 6 superior families were selected. All superior families came from the superior provenances.
Data of seedling and trial growth of Keteleeria cyclolepis were analysed in the study. The results showed that provenances effect and family within provenances effect were significant or highly significant in both seedling and trial, indicating provenances and families selection were feasible. Highly significant relationship existed between seedling and trial early growth, provenances and families growed well in seedling, also showed advantage in trial. Provenances hertiability was greater than family hertiability, but both were under medium level. According to height and diameter of ground height of the provenances and family, 2 superior provenances and 6 superior families were selected. All superior families came from the superior provenances.
引文
[1]何国生.福建江南油杉4种天然林群落物种结构特征[J].西南林业大学学报,2011,31(5):1-5.
[2]翁闲.福建江南油杉天然种群分布规律研究[J].福建林业科技,2008,35(4):12-14.
[3]王润辉,胡德活,郑会全,等.江南油杉球果种子特性种源变异分析[J].中南林业科技大学学报,2016,36(2):19-24.
[4]吴惠姗,赵奋成,郭文冰,等.湿地松、加勒比松育苗立地类型与基质种类选择研究[J].林业与环境科学,2016,32(3):7-13.
[5]XIANG B,LI B L.A new mixed analytical method for genetic analysis of diallel data[J].Canadian Journal of Forest Research,2001,31(12):2252-2259.
[6]王润辉,胡德活.SAS Proc Mixed在林木育种试验统计中应用简介[J].广东林业科技,2011,27(3):50-54.
[7]王润辉,胡德活,郑会全,等.杉木无性系生长和材性变异及多性状指数选择[J].林业科学,2012,48(3):45-50.
[8]王润辉,张伟红,郑会全,等.乐昌含笑多点种源试验与优良种源选择[J].中南林业科技大学学报,2015,35(5):16-21;34.
[2]翁闲.福建江南油杉天然种群分布规律研究[J].福建林业科技,2008,35(4):12-14.
[3]王润辉,胡德活,郑会全,等.江南油杉球果种子特性种源变异分析[J].中南林业科技大学学报,2016,36(2):19-24.
[4]吴惠姗,赵奋成,郭文冰,等.湿地松、加勒比松育苗立地类型与基质种类选择研究[J].林业与环境科学,2016,32(3):7-13.
[5]XIANG B,LI B L.A new mixed analytical method for genetic analysis of diallel data[J].Canadian Journal of Forest Research,2001,31(12):2252-2259.
[6]王润辉,胡德活.SAS Proc Mixed在林木育种试验统计中应用简介[J].广东林业科技,2011,27(3):50-54.
[7]王润辉,胡德活,郑会全,等.杉木无性系生长和材性变异及多性状指数选择[J].林业科学,2012,48(3):45-50.
[8]王润辉,张伟红,郑会全,等.乐昌含笑多点种源试验与优良种源选择[J].中南林业科技大学学报,2015,35(5):16-21;34.