杉木优树多父本杂交子代测定及母本选择

doi:10.11707/j.1001-7488.20140906

林业科学 ›› 2014, Vol. 50 ›› Issue (9): 44-50.doi: 10.11707/j.1001-7488.20140906

杉木优树多父本杂交子代测定及母本选择

郑仁华¹, 苏顺德¹, 肖晖¹, 许鲁平², 李林源³, 林文龙², 张子文², 孟庆银²

1. 福建省林业科学研究院国家林业局南方山地用材林培育重点实验室国家林业局杉木工程技术研究中心福州 350012;
2. 福建省沙县官庄国有林场沙县 365500;
3. 福建省三明市郊国有林场三明 365000

收稿日期:2013-11-04 修回日期:2014-03-16 出版日期:2014-09-25 发布日期:2014-09-30
基金资助:
福建省林木种苗科技攻关三期、四期项目“杉木速生优质高产新品种定向选育研究与应用”（闽林科［2009］4号和闽林科［2013］1号）；福建省科技重大专项专题“杉木优质种苗繁育技术及人工林高效培育技术”（2012NZ0001-1）；“十二五”农村领域国家科技计划专题（2012BAD01B0201）。

Female Selection Based on a Polycross Progeny Test of Cunninghamia lanceolata Plus Trees

Zheng Renhua¹, Su Shunde¹, Xiao Hui¹, Xu Luping², Li Linyuan³, Lin Wenlong², Zhang Ziwen², Meng Qingyin²

1. Key Laboratory of Timber Forest Breeding and Cultivation for Mountainous Areas in Southern China of State Forestry Administration Engineering Research Center of Chinese Fir of State Forestry Administration Fujian Academy of Forestry Fuzhou 350012;
2. Guanzhuang State-Owned Forest Farm of Fujian Shaxian 365500;
3. Sanming Suburban State-Owned Forest Farm of Fujian Sanming 365000

Received:2013-11-04 Revised:2014-03-16 Online:2014-09-25 Published:2014-09-30

摘要/Abstract

摘要：

为选择优良杂交母本,调查分析27年生杉木优树多父本杂交子代测定林的生长性状和木材基本性质,结果表明: 树高、胸径、立木材积在参试组合间差异极显著；胸径受遗传控制相对较强,家系遗传力0.325；木材基本密度在组合间差异显著；红心率、偏心率、树皮率差异不显著；木材基本密度的家系遗传力为0.202。在遗传变异的基础上,利用胸径和木材基本密度构建选择指数方程筛选出‘F三明74-5’、‘F桃3’、‘F桃2’等11个速生优质杂交母本,家系的胸径、木材基本密度遗传增益分别为3.19%和1.21%。对比分析12年生时和27年生时对胸径的选择结果,表明中期生长性状选择的入选率为19%时具有最高的选择效率。

关键词: 杉木, 优树, 多父本杂交, 子代测定, 选择, 遗传增益

Abstract:

To select superior female parents, a polycross progeny test of 27-year-old Cunninghamia lanceolata plus trees was conducted to examine growth and basic wood traits including tree height, diameter at breast height(DBH), standing wood volume, and basic density of wood. The results showed that there were significant differences in growth and basic density of wood among hybridized combinations. Furthermore, DBH was the trait mostly controlled by genetic factor. The family heritability of DBH and basic density of wood was 0.325 and 0.202, respectively. Based on a selection index equation which was established with DBH and basic density of wood, 11 superior plus trees such as ‘F Sanming 74-5’, ‘F Tao 3’ and ‘F Tao 2’were identified as superior female parents. The average genetic gain of DBH and basic wood density of these superior plus was 3.19% and 1.21%, respectively. In addition, based on the contrast of selection results of DBH examined at the age of 12 and 27-year-old, selection ratio of 19% was identified as the best for growth selection in the medium term.

Key words: Cunninghamia lanceolata, plus tree, polycross, progeny test, selection, genetic gain

中图分类号:

S722.3

郑仁华, 苏顺德, 肖晖, 许鲁平, 李林源, 林文龙, 张子文, 孟庆银. 杉木优树多父本杂交子代测定及母本选择[J]. 林业科学, 2014, 50(9): 44-50.

Zheng Renhua, Su Shunde, Xiao Hui, Xu Luping, Li Linyuan, Lin Wenlong, Zhang Ziwen, Meng Qingyin. Female Selection Based on a Polycross Progeny Test of Cunninghamia lanceolata Plus Trees[J]. Scientia Silvae Sinicae, 2014, 50(9): 44-50.

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杉木优树多父本杂交子代测定及母本选择

Female Selection Based on a Polycross Progeny Test of Cunninghamia lanceolata Plus Trees

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