Genetic parameters in a clonal test of Tectona grandis in Mato Grosso, Brazil





Teak (Tectona grandis) is a high-value timber species in tropical regions. In Brazil, although teak has a high productivity, there are few studies related to its genetic improvement. This work aimed to estimate genetic parameters and evaluate potential gains of selection in a clonal test of teak installed in the state of Mato Grosso, Brazil. The experimente is in a randomized block design, with five replications, 3x3 m spacing, 22 treatments, and plots with six individuals. At five years, the genotypes were evaluated for survival (S), tree total height (H) and girth at breast height (GBH). There was significance and feasibility of selection for S and GBH. For H, the result was not significant, indicating few gains with the selection. The genetic parameters of clonal mean heritabilities and accuracy were of moderate magnitude for S and GBH and low for H. To best of our knowledge, this is the first work that estimates genetic parameters in a clonal teak test in the field in Brazil.

Author Biography

Ana Carolina Pereira, Universidade Federal do Mato Grosso

Possui graduação em Engenharia Florestal pela Universidade Federal de Mato Grosso. Tem experiência na área de Recursos Florestais e Engenharia Florestal, com ênfase em Recursos Florestais e Engenharia Florestal, atuando principalmente na área de melhoramento genético florestal. Mestranda em Programa de Pós graduação em Ciências Florestais e Ambientais.