
Family variation and selection of growth traits of eight-year-old Cupressus funebris in two sites
WANG Wenyue, ZHANG Zhen, JIN Guoqing, SUN Linshan, QIU Yongbin, ZHOU Zhichun, YANG Tao
JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (2) : 42-48.
Family variation and selection of growth traits of eight-year-old Cupressus funebris in two sites
【Objective】 The aims of this research is to reveal the genetic variation rules of Cupressus funebris growth traits, select the most suitable germplasm for the advanced genetic improvement, and select the most suitable families for regional promotion. 【Method】 For this study, eight-year-old half-sib families of C. funebris grown in the KH and TZS experimental sites were used, the genetic variations of growth traits were analyzed, and the breeding value and heritability were estimated. 【Result】 The genetic variation coefficients of C. funebris growth traits (tree height, diameter at breast height (DBH) and volume) ranged from 3.08%-13.93%, and the variation of volume was the greatest. The tree height, diameter at breast height, and volume of progeny families varied significantly among locations. The individual tree volume at TZS was 315.79% higher than that at KH, and the interaction between families and locations was significant. The tree height, DBH and volume have significant effects on the family. The range of heritability in the KH and TZS test sites was 0.42-0.61 and 0.58-0.74, respectively. Six complementary families were selected from the KH and TZS test sites based on the standard of breeding value per plant volume greater than 10% and 45% of CK, respectively, and the actual gains were 33.51% and 67.95%, respectively. Using the independent elimination method, 17 and 12 individual plus trees were screened at the KH and TZS sites respectively, and the genetic gains of volume were 41.38% and 40.92%, respectively. 【Conclusion】 The growth traits of the eight-year-old half-sib families of C. funebris have great potential for the genetic improvement, but the interaction effect between the family and the environment was significant. The genetic evaluation of the half-sib families was helpful for the re-selection of the parents for the establishment of the seed orchards and the thinning of the existing seed orchards. At the same time, the selected optimum germplasm can be used as breeding parents for high-order genetic improvement.
Cupressus funebris / complementary family / genetic variation / genetic gain
[1] |
王云鹏, 张蕊, 周志春, 等. 10年生木荷生长和材性性状家系变异及选择[J]. 南京林业大学学报(自然科学版), 2020, 44(5):85-92.
|
[2] |
孙晓梅, 杨秀艳. 林木育种值预测方法的应用与分析[J]. 北京林业大学学报, 2011, 33(2):65-71.
|
[3] |
|
[4] |
徐德志. 火炬松半同胞家系子代测定及分析[D]. 南京: 南京林业大学, 2010.
|
[5] |
解懿妮, 刘青华, 蔡燕灵, 等. 5年生马尾松生长性状3地点家系变异及评价[J]. 林业科学研究, 2020, 33(5):1-12.
|
[6] |
陈坦, 张振, 楚秀丽, 等. 马尾松二代无性系种子园的花期同步性[J]. 林业科学, 2019, 55(1):146-156.
|
[7] |
|
[8] |
肖遥. 南方红豆杉种源和家系生长遗传变异[D]. 南京: 南京林业大学, 2016.
|
[9] |
|
[10] |
|
[11] |
王瑞文, 郭赟, 林虎, 等. 柏木研究进展及展望[J]. 湖北林业科技, 2021, 50(4):60-63.
|
[12] |
郑一, 张振, 金国庆, 等. 低肥力土壤施用氮磷钾肥影响柏木家系根系发育和养分吸收对钙肥的响应[J]. 植物营养与肥料学报, 2020, 26(8):1501-1512.
|
[13] |
洪舟, 杨曾奖, 张宁南, 等. 越南黄花梨种源家系生长遗传变异及早期选择[J]. 南京林业大学学报(自然科学版), 2020, 44(1):25-30.
|
[14] |
尹海锋, 苏宇, 郭茂金, 等. 目标树经营初期对柏木人工林土壤线虫群落的影响[J]. 生态学报, 2019, 39(10):3607-3621.
|
[15] |
杨育林, 李贤伟, 周义贵, 等. 林窗式疏伐对川中丘陵区柏木人工林生长和植物多样性的影响[J]. 应用与环境生物学报, 2014, 20(6):971-977.
|
[16] |
李新国, 朱之悌. 用地点间遗传相关研究树木基因型×环境互作[J]. 北京林业大学学报, 1992, 14(S3):85-91.
|
[17] |
|
[18] |
林元震. 林木基因型与环境互作的研究方法及其应用[J]. 林业科学, 2019, 55(5):142-151.
|
[19] |
严艳兵, 潘惠新. 美洲黑杨无性系木材材性与生长性状遗传相关分析[J]. 中南林业科技大学学报, 2021, 41(5):74-81.
|
[20] |
洪永辉, 林文奖, 黄以法. 12年生马尾松种子园半同胞家系生长性状变异分析与优良家系选择[J]. 南京林业大学学报(自然科学版), 2010, 34(4):26-30.
|
[21] |
金国庆, 张振, 余启新, 等. 马尾松2个世代种子园6年生家系生长的遗传变异与增益比较[J]. 林业科学, 2019, 55(7):57-67.
|
[22] |
刘晓婷, 魏嘉彤, 吴培莉, 等. 吉林省天然红松居群表型变异分析及多样性研究[J]. 北京林业大学学报, 2021, 43(4):25-34.
|
[23] |
周琳. 柏木优树子代遗传分析及优良家系评选[D]. 雅安: 四川农业大学, 2017.
|
[24] |
刘宇, 徐焕文, 张广波, 等. 白桦半同胞子代多点生长性状测定及优良家系选择[J]. 北京林业大学学报, 2017, 39(3):7-15.
|
[25] |
曾德贤, 朱仁刚, 范林元, 等. 墨西哥柏52个优树自由授粉子代遗传测定[J]. 西南林学院学报, 2006, 26(4):22-26.
|
[26] |
|
[27] |
袁承志, 陈坦, 张振, 等. 不同养分环境下钙添加对柏木家系苗木生长和根系发育的影响[J]. 应用与环境生物学报, 2020, 26(5):1161-1168.
|
[28] |
张华丽, 张金凤, 王军辉, 等. 针叶树补光育苗技术研究进展[J]. 西北林学院学报, 2005, 20(1):107-111.
|
[29] |
|
[30] |
|
/
〈 |
|
〉 |