We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
麻栎优树自由授粉家系生长性状3 地点间 动态变异及优良家系选择.
- Authors
苑海静; 成向荣; 虞木奎; 汪阳东; 邰建武; 张春祥; 王新洋
- Abstract
[Objective] To study the genetic variation of growth traits in superior open-pollinated families of Quercus acutissima with the increase of stand age, and to select the superior families for Q. acutissima plantation cultivation. [Method] Eighteen superior tree open-pollination families coming from Rongshui of Guangxi Zhuang Autonomous Region were planted in 3 test sites (Yongfeng of Jiangxi Province, Kaihua of Zhejiang Province and Chuzhou of Anhui Province). The variation in tree growth among the families and the dynamic changes of above-ground biomass of individual tree (AGB) with stand age were investigated. The stability of growth traits was evaluated using the AMMI model, and then the superior families were selected. [Result] The tree height, diameter at breast (or ground) height, and the AGB significantly differed among the 3 test sites. The AGB of Q. acutissima trees was significantly affected by the site, family, and family × site. The site had the greatest impact on growth variation, followed by family and family × site. The growth performance of 1-3 years old and 6-11 years old families had great difference among test sites. Based on the AGB at the 11st year, the superior families in Yongfeng were M11, M9 and M15, their genetic gain was 4.08%-7.45%; the superior families in the Kaihua were M16 and M2, their genetic gain was 28.01%-37.02%; the superior families in the Chuzhou were M17, M1 and M18, their genetic gain was 15.05%-30.29%. According to growth performance and stability analysis, it was showed that the families M18 and M20 were suitable for cultivation at all the 3 test sites. The average biomass of the AGB was 31.38 kg, and the average Dg(e) was 0.88. [Conclusion] The growth of superior open-pollinated families of Q. acutissima will be affected by the interaction of site and family, and some superior families were selected for Q. acutissima plantation cultivation.
- Subjects
JIANGXI Sheng (China); ANHUI Sheng (China); ZHEJIANG Sheng (China); TREE growth; TREE height; GENETIC variation; BIOMASS; FAMILIES; POLLINATION
- Publication
Forest Research, 2022, Vol 35, Issue 2, p9
- ISSN
1001-1498
- Publication type
Article
- DOI
10.13275/j.cnki.lykxyj.2022.02.002