ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Breeding
Genotype by Environment Interaction for Growth Traits of Families of Acacia melanoxylon Based on BLUP and GGE Biplot
Provisionally accepted
Shao-Ning Ruan1*
Liu-Ben Chen1Bo Zhang1Wei-Hao Zhang2Guo-Chang Ding3
Guangqiu Cao1Long-Tai Ye4Shi-Bin He4Dong-Yang Shen5Qiang Yan6- 1College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- 2Fujian Forestry Survey and Design Institute, Fuzhou, China
- 3College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, China
- 4Zhangpu Zhongxi State-owned Forest Farm in Fujian Province, Zhangzhou, China
- 5Nan’an Luoshan State-owned Forest Farm in Fujian Province, Nan’an, China
- 6Xiqin Teaching Forest Farm, Fujian Agriculture and Forestry University, Nanping, China
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Acacia melanoxylon is a high-quality timber species renowned for its superior heartwood and wide global use. To assess its stability, adaptability, and productivity in Fujian Province, China, a regional trial involving 47 Acacia melanoxylon families was conducted across four sites. The study utilized best linear unbiased prediction (BLUP) breeding values were estimated using 5-year-old diameter at breast height (DBH) and tree height data, and genotype plus genotype-by-environment (GGE) biplots were used to evaluate families and trial sites. The biplot generated based on BLUP values for DBH revealed that the four trial sites clustered into two groups. Group 1 comprised sites ZX (Zhangpu Zhongxi State-owned Forest Farm, Zhangpu County), LX (Quanzhou Luoxi State-owned Forest Farm, Quanzhou City), and XQ (Nanping Xiqin Teaching Forest Farm, Nanping City), while Group 2 included site LS (Nan'an Luoshan State-owned Forest Farm, Nan'an City). Sites LX and XQ showed strong positive correlations with each other and moderate correlations with ZX, indicating similar family rankings. In contrast, LX was negatively correlated with LS, reflecting opposing trends in genotype performance. Site ZX exhibited high discriminative power and representativeness, identifying it as the most effective location for evaluating families. Families 38, 35, 9, 17, and 24 demonstrated a combination of high yield and stability, underscoring their potential for extensive cultivation. The measurement of DBH is more cost-effective and accurate compared to tree height, and it aligns with our breeding objectives. Therefore, this study primarily focused on DBH for selection, and the results provide a theoretical foundation for promoting Acacia melanoxylon in Fujian Province.
Keywords: Acacia melanoxylon, Best linear unbiased prediction, GGE biplot, Regional trial, Family selection
Received: 29 Jun 2025; Accepted: 28 Oct 2025.
Copyright: © 2025 Ruan, Chen, Zhang, Zhang, Ding, Cao, Ye, He, Shen and Yan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Shao-Ning Ruan, fjrsn@126.com
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