Abstract
Eucalyptus plantations in Brazil are expanding toward the northern and mid-western regions of the country. The objective of the present study was to select clones adapted to the local conditions, with a focus on the Cerrado region. Three clonal experiments were conducted in the municipalities of Catalão, Corumbá-de-Goiás, and Luziânia, in Goiás State, with 109 genotypes of eucalypts. The experimental design consisted of a randomized complete block design with single-tree plots and 29 blocks. Diameter at breast height and total height of all trees were measured four years after planting, for use in the estimation of wood volume for each genotype. The genotype × environmental interaction was significant and predominantly (74%) complex. The genotypic correlation among environments was moderate (< 0.47), indicating that clones should be selected for specific sites. However, some clones performed relatively well across all environments, such as clones CCL21, CCL30, AEC144, CCL07, and CCL35.
Highlights
The Brazilian forestry sector is highly competitive in the international market, contributing R$ 86.6 billion to the Brazilian GDP annually
Eucalyptus plantations account for 72.4% of the 7.83 million hectares of Brazilian commercial forests (IBÁ 2019)
The high growth rate in relatively short cycles are due to the environmental conditions in Brazil, in addition to the advanced of silvicultural techniques and advances in genetic breeding techniques (Assis et al 2015)
Summary
The Brazilian forestry sector is highly competitive in the international market, contributing R$ 86.6 billion to the Brazilian GDP annually. Eucalyptus plantations account for 72.4% of the 7.83 million hectares of Brazilian commercial forests (IBÁ 2019). In Brazil, the most planted species are Eucalyptus grandis and Eucalyptus urophylla and their hybrids (Assis et al 2015), achieving wood productivity records globally, with an average of 37 m3 ha-1 year-1 (IBÁ 2019), and the potential to achieve a productivity higher than 60 m3 ha-1 year-1 (Stape et al 2010). Eucalyptus plantations were concentrated in the South and Southeastern regions of Brazil, mostly within the Atlantic Forest biome (Reis et al 2017). New plantation regions are being sought, which have lower land value, higher tax incentives, and greater flexibility in terms of infrastructure
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
