Abstract The genetic breeding of Eucalyptus species from the subgenus Blakella , especially E. maculata and E. torelliana , is on the rise in Brazil. These species stand out for the quality of their wood and the possibility of taking advantage of the heterosis between them; however, they are still at the beginning of domestication. From the above, this study aims to: estimate genetic and phenotypic parameters; use this information to compare alternatives that can improve selection efficiency in progeny tests; and verify the viability of selecting the best individuals from each progeny in several locations. For this, DBH (cm) data were used from E. maculata progeny evaluation experiments conducted in two sites and E. torelliana in three sites, at six years of age, with 40 repetitions and of single-tree-plot. It was found that, for both species, the expected gain from selection was significant in all sites. In combined selection, the intensity of selection among the progenies was very mild (a large number of progenies being selected), even considering that the heritability on mean among the progenies was much higher than that obtained among individuals. The number of individuals selected per progeny was very different. This fact can reduce the effectiveness of recurrent selection in the medium term. Using clones as common controls is viable for selecting a single improved population based on the evaluation of progenies in more than one site.

Ana Flávia Cunha Fernandes de Oliveira

Magno Antonio Patto Ramalho

Luis Carlos da Silva Soares

José Luis de Lima

Aurélio Mendes Aguiar

Flavia Maria Avelar Gonçalves

Silvae genetica/Silvae Genetica

SILVAE GENETICA 是一本国际同行评审期刊，在理论和应用森林遗传学和树木育种的所有领域拥有超过 65 年的传统和经验。它继续由 W. LANGNER 于 1951 年创立的“ZEITSCHRIFT FÜR FORSTGENETIK UND FORSTPFLANZÜCHTUNG”（森林遗传学和林木育种杂志）。

Silvae Genetica is an international peer-reviewed journal with over 65 years of tradition and experience in all areas of theoretical and applied forest genetics and tree breeding. It continues the legacy of the 'Zeitschrift für Forstgenetik und Forstpflanzenzüchtung' founded by W. Langner in 1951.

《Silvae Genetica》是一本国际同行评审期刊，拥有超过65年的历史，专注于理论和应用森林遗传学及树木育种的各个领域。该期刊延续了W. Langner于1951年创办的《Zeitschrift für Forstgenetik und Forstpflanzenzüchtung》（森林遗传学和林木育种杂志）的传统与经验。

Category	Quartile
农林科学	4
农林科学, 林学	4
农林科学, 遗传学	4

Recurring Selection Strategies in Species of Eucalyptus maculata and Eucalyptus torelliana

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Journal Info

Category	Quartile
GENETICS & HEREDITY	4