[1]薛惠芬,于晓池,付鹏跃,等. 黄心梓木优良无性系评价与初选[J].西北林学院学报,2022,37(2):108-114.[doi:10.3969/j.issn.1001-7461.2022.02.14]
　XUE Hui-fen,YU Xiao-chi,FU Peng-yue,et al. Evaluation and Primary Selection of Excellent Clones of Catalpa fargesii f.duclouxii[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(2):108-114.[doi:10.3969/j.issn.1001-7461.2022.02.14]
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 黄心梓木优良无性系评价与初选()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第2期
页码:
108-114
栏目:
出版日期:
2022-03-31

文章信息/Info

Title:
 Evaluation and Primary Selection of Excellent Clones of Catalpa fargesii f.duclouxii
文章编号:
1001-7461(2022)02-0108-07
作者:
 薛惠芬1; 2; 于晓池1; 2; 付鹏跃1; 2; 肖遥2; 刘冰洋2; 杨桂娟2; 王军辉2; 赵曦阳1; 麻文俊2*
 （1.林木遗传育种国家重点实验室，东北林业大学林学院，黑龙江 哈尔滨 150040；2.中国林业科学研究院 林业研究所，林木遗传育种国家重点实验室，国家林业和草原局林木培育重点实验室，楸树国家创新联盟，北京 100091）
Author(s):
 XUE Hui-fen1; 2; YU Xiao-chi1; 2; FU Peng-yue1; 2; XIAO Yao2; LIU Bing-yang2; YANG Gui-juan2; WANG Jun-hui2; ZHAO Xi-yang1; MA Wen-jun2*
 (1.State Key Laboratory of Tree Genetics and Breeding,School of Forestry,Northeast Forestry University,Harbin 150040,Heilongjiang,China; 2.State Key Laboratory of Tree Genetics and Breeding/Key Laboratory of Tree Breeding and Cultivation of National Forestry and Grass Land Administration,China Forest Genetic Resource,Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China)
关键词:
 ; 黄心梓木; 生长性状; 叶片性状; 多性状综合评价法; 隶属函数法; 指数选择法
Keywords:
Catalpa fargesii f.duclouxii;  growth trait;  leaf trait;  multi-traits comprehensive evaluation method;  membership function analysis method;  index selection method
分类号:
S722.33
DOI:
10.3969/j.issn.1001-7461.2022.02.14
文献标志码:
A
摘要:
 为揭示黄心梓木重要性状的变异水平，初选的无性系为速生优良无性系的选择提供物质基础。以种植在河南省南阳市252个黄心梓木无性系为材料，对其2年生树高、胸径、叶长、叶宽、叶长宽比、叶片质量、比叶质量与皮孔数量等8个性状进行测定分析。方差分析结果表明，除比叶质量在不同无性系间差异不显著外，其余性状均达极显著差异水平（P<0.01）。无性系间各性状表型变异系数变化范围为7.104%~40.818%；重复力变化范围为0.101~0.859。相关性分析表明：树高与胸径、叶长与叶宽、叶长和叶宽与叶片质量均达到极显著正相关水平；比叶质量与叶长宽比、叶片质量之间达（极）显著正相关水平，但与叶宽之间呈显著负相关关系；生长性状和叶片性状相关性较弱。通过多性状综合评价法、隶属函数法和指数选择法分别对不同无性系进行评价选择，以15%的入选率分别筛选出37个优良无性系，其中，不同方法共同筛选出7个优良无性系，其树高、胸径的现实增益为10.44%和12.96%。利用综合评价法、隶属函数法和指数选择法联合选择出39、46、64、92、159、177和242共7个无性系，可以作为楸树遗传改良的首选材料。
Abstract:
 The genetic variation of important traits of Catalpa fargesii f.duclouxii had been revealed,and the excellent clones selected provided material basis for the selection of fast-growing elites.Taking 252 clones (2-year-old) of C.fargesii f.duclouxii cultivated in Nanyang City,Henan Province as materials,eight parameters were measured and analyzed,including tree height (H),the diameter at breast height (DBH),leaf length (LL),leaf width (LW),ratio of leaf length and width (LWR),leaf mass (LM),leaf mass per unit area (LMA) and number of lenticels (LN).Analysis of variance showed that almost all the traits among clones reached extremely significant difference (P<0.01),except for LMA.The coefficients of phenotypic variation of all the traits ranged from 7.104%-40.818%.Repeatability ranged from 0.101-0.859.Correlation analysis showed that there was significant positive correlation between H and DBH.LL was significantly and positively correlated with LW.What’s more,LL and LW were significantly and positively correlated with LM.LMA was negatively correlated with LW,while significant and positive correlationship was found between LWR and LM.It was obvious that there was little correlation between growth traits and leaf traits.With the selection rate of 15%,the 37 fine clones were selected according to multi-traits comprehensive evaluation method,membership function analysis method,and index selection method,respectively,among them,7 superior clones were screened out,the realized genetic gain of H and DBH were 10.44% and 12.96%,respectively.Seven superior clones that selected included No.39,46,64,92,159,177 and 242,which could be used as the preferred materials for genetic improvement of C.bungei.

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备注/Memo

备注/Memo:
 收稿日期：2021-03-16修回日期：2021-05-05
基金项目：中央级公益性科研院所基本科研业务费专项资金项目（CAFYBB2020SZ003）。
第一作者：薛惠芬。研究方向：楸树遗传改良。E-mail：xuehuifen98@163.com
*通信作者：麻文俊，博士，副研究员。研究方向：楸树等珍贵树种遗传改良和高效培育技术。E-mail：mwjlx@sina.com
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