奇楠沉香无性系测定及早期选择  

Testing and Early Selection of Qinan Agarwood(Aquilaria sinensis)

作　　者：吴庆全 WU Qingquan(Tianma State-owned Forest Farm,Pinghe 363704,Fujian,China)

机构地区：[1]福建省平和天马国有林场,福建平和363704

出　　处：《福建林业科技》2024年第4期65-70,共6页Journal of Fujian Forestry Science and Technology

基　　金：福建省林业科研项目(闽林文〔2022〕52号)。

摘　　要：为了筛选出适合闽南山地种植的奇楠沉香优良无性系,于2021—2023年对福建省平和天马国有林场从广东引进的25个奇楠沉香无性系进行测定,分析奇楠沉香无性系的成(存)活率、地径、树高以及冠幅等生长指标,采用隶属函数法综合评价选择优良无性系。结果表明:参试的25个奇楠沉香无性系3年生时的平均存活率、地径、树高、冠幅分别为73.12%、4.25 cm、2.07 m、1.27 m,不同无性系间差异均达极显著水平。隶属函数法综合评价选出6个生长性状优良的无性系,平均存活率、地径、树高、冠幅分别为84.17%、4.87 cm、2.32 m、1.42 m,平均遗传增益分别为11.25%、11.43%、8.72%、8.02%,对本试验区的环境适应能力较强,生长较快,可以优先在本区域适度规模发展。In order to select superior clones of Qinan agarwood suitable for the development of the mountainous areas in southern Fujian,a random block testing with 25 clones introduced from Guangdong in Pinghe Tianma State-owned Forest Farm of Fujian Province were measured from 2021 to 2023.The study analyzed the growth indicators of Qinan agarwood clones,including survival rate,ground diameter,tree height,and crown width.The superior clones were selected through comprehensive evaluation using the membership function method.The results showed that the differences in survival rate,ground diameter,tree height,and crown width among the 3-year-old Qinan agarwood clones reached an extremely significant level,with average values of 73.12%for survival rate,4.25 cm for ground diameter,2.07 m for tree height and 1.27 m for crown width.Six clones with superior growth traits were selected,with average survival rate,ground diameter,tree height and crown width of 84.17%,4.87 cm,2.32 m and 1.42 m,respectively.The average genetic gains were 11.25%for survival rate,11.43%for ground diameter,8.72%for tree height and 8.02%for crown width.These clones demonstrated strong adaptability to the environment in this experimental area and grew rapidly,making them suitable for priority development on a moderate scale in this area.

关 键 词：奇楠沉香 无性系 生长性状 早期选择 

分 类 号：S722.33[农业科学—林木遗传育种]