Evaluation of genetic parameters and clonal selection of Eucalyptus in the Cerrado region

• Autor(a) principal: Oliveira, Rodrigo de Sousa
• Data de Publicação: 2020
• Outros Autores: Ribeiro, Carlos Vinícius Gonçalves, Neres, Deisiany Ferreira, Porto, Antônio Carlos da Mota, Ribeiro, Dalton, Siqueira, Leandro de, Zauza, Edival Ângelo Valverde, Coelho, Alexandre Siqueira Guedes, Reis, Cristiane Aparecida Fioravante, Alfenas, Acelino Couto, Novaes, Evandro
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFLA
• Texto Completo: http://repositorio.ufla.br/jspui/handle/1/46783
• topic: Clonal forestry; Biometric models; Genotype × environment interaction; Forest breeding; Eucalipto - Seleção clonal; Silvicultura clonal; Modelos biométricos; Interação genótipo × ambiente; Melhoramento florestal

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.