文献类型：期刊文献

中文题名：13个柚木种源/家系生长表现研究

英文题名：Growth Performance of 13 Provenances/Families of Tectona grandis

作者：李运兴[1,4] 梁坤南[2] 黄桂华[2] 邝炳朝[2] 郝建[1,4] 杨保国[1,4] 潘丽琴[3] 黄日逸[1,4]

第一作者：李运兴

机构：[1]中国林业科学研究院热带林业实验中心,广西凭祥532699;[2]中国林业科学研究院热带林业研究所,广东广州510520;[3]广西民族师范学院,广西崇左532200;[4]广西友谊关森林生态系统国家定位观测研究站,崇左凭祥友谊关森林生态系统广西野外科学观测研究站,广西凭祥532699

年份：2024

卷号：37

期号：1

起止页码：1-9

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：广西林业科技示范推广项目“柚木种质区域试验及多模式造林研究示范”(2023GXLK41);广西林业科技推广项目“柚木种质测定及高效培育技术集成示范”(gl2018kt18);“十三五”国家重点研发计划项目“柚木高效培育技术研究”(2016YFD0600602)。

语种：中文

中文关键词：柚木;种源/家系;生长表现;相关因子

外文关键词：Tectona grandis;Provenances/Families;growth performance;related factors

分类号：S722

摘要：[目的]了解国内柚木种源/家系的遗传变异特征,选育更多适应性强的优良种质。[方法]对采集自海南尖峰岭等地的13个种源/家系进行造林试验,在5、10、37 a时测定树高、胸径,应用方差分析方法进行差异性分析和重复力估算,运用偏相关分析揭示生长因子与地理及气候因子的相关性,进而筛选优良种质。[结果](1)不同种源/家系间37 a生时保存率、树高、胸径、单株材积差异显著,其变化范围分别为68.81%~94.29%、11.72~16.03 m、11.33~17.92 cm、0.0844~0.3291 m^(3)。(2)树高、胸径、材积重复力分别为0.6077、0.5131、0.6344。(3)保存率、树高与地理坐标、气候因子相关不显著;胸径和单株材积与海拔(r=0.938^(**),r=0.868^(**))、年均温(r=0.914^(**),r=0.844^(**))显著正相关,与经度(r=-0.913^(**),r=-0.735^(*))、距离(r=-0.923^(**),r=-0.832^(**))显著负相关。(4)聚类分析结果表明,37 a生时,种源/家系7514的保存率、树高、胸径和单株材积表现最好,8440表现最差,其次是75129。[结论]不同种源/家系间保存率、树高、胸径、单株材积差异显著,树高、单株材积有较高的重复力。柚木引种宜选择年均气温相近且距离较近的种源/家系以获得较好的遗传表现,对于凭祥当地而言,种源/家系7514适宜广泛推广种植。
[Objective]In order to select more good varieties with wide adaptability for Tectona grandis,[Method]The experimental plantation was established with 13 provenances/families collected from Jianfengling and other places in Hainan province.Tree height and diameter at breast height(DBH)were measured at 5,10 and 37 years old.ANOVA analysis and repeatability assessment were performed to select superior provenances/families.Partial correlation analysis was used to reveal the correlation between tree growth and geographical and climatic factors.[Result]①Significant differences among provenances/families were found at 37 years old for survival rate,tree height,DBH and individual volume.The variation ranges were 68.81%~94.29%,11.72~16.03 m,11.33~17.92 cm,0.0844~0.3291 m^(3),respectively.②The repeatability of tree height,DBH and individual volume were 0.6077,0.5131 and 0.6344,respectively.③The survival rate and tree height were not significantly correlated with geographic coordinates and climate factors;while DBH and individual volume were significantly positively correlated with elevation(r=0.938^(**),r=0.868^(**))and mean annual temperature(r=0.914^(**),r=0.844^(**)),and negatively correlated with longitude(r=?0.913^(**),r=?0.735^(*))and distance(r=?0.923^(**),r=?0.832^(**)).④The results of cluster analysis indicated that provenance/family 7514 performed the best on the survival rate,tree height,DBH and individual volume,while 8440 performed the worst,and followed by 75129 at the 37 years old.[Conclusion]There are significant differences among provenances/families for the survival rate,tree height,DBH and individual volume.Both tree height and individual volume present a relatively high repeatability.For the introduction of teak,it is advisable to choose a source/family with similar annual temperatures and close distances to obtain better genetic performance.For the local area of Pingxiang,source/family 7514 is suitable for widespread planting.