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Genetic and phenotypic variations in early growth performances of grevillea trees for use in agroforestry systems

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The study focused on the variation of growth performances of grevillea (Grevillea robusta Cunn.), an important multi-purpose tree, also known as silky oak, of Australian origin and used in many countries, including Brazil. The trial was conducted by the Brazilian Agriculture Research Corporation (Embrapa) and Itaipu-Binacional, and assessed in collaboration with the Federal University of ParanĂ¡ (UFPR). A half-sib family trial was established with seed from different geographical locations throughout the species natural range. The study sought to identify fast growing families and individuals for timber and shade production. Significant differences among families were found, and recommendations were made for a selective thinning to transform the progeny test into a mixed provenance seedling seed orchard.
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Keywords: genetic gain; progeny; provenance; seed orchard; selection

Document Type: Research Article

Affiliations: 1: Embrapa Florestas, Cx. Postal 319, Colombo, PR-Brazil 83411-000;, Email: [email protected] 2: Forestry Department, Michigan State University, East Lansing, Michigan, USA;, Email: [email protected] 3: Embrapa Florestas, Cx. Postal 319, Colombo, PR-Brazil 83411-000 4: Engenharia Florestal, Universidade Federal do ParanĂ¡, Curitiba, PR-Brazil

Publication date: 01 June 2002

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