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Seleção de eucalipto, com vistas ao rendimento e conteúdo de citral do óleo essencial

Selecting eucalyptus for both high oil yield and citral content

NOTA

Seleção de eucalipto, com vistas ao rendimento e conteúdo de citral do óleo essencial1 1 Trabalho subvencionado pela Fundação de Amparo à Pesquisa do Estado de São Paulo.

Selecting eucalyptus for both high oil yield and citral content

A. J. D'Andréa Pinto; C. J. de Souza; M. G. R. Donalísio2 2 Com bolsas de suplementação do C.N.Pq.

SUMMARY

In an Eucalyptus Staigeriana F. v. Muell. plantation, 371 trees were considered as typical and chosen for testing. The plants were individually cropped, their leaves were processed by steam distillation and the respective oil samples were analysed by VPC. Oil yields varied from 0.07% up to 2.53%; citral content increased from 10.13% up to 62.96%. Due to the wide range of variation found among trees, a selection work was begun, starting from trees possessing the most desirable characteristics. Thirteen trees were found to yield at least 1.5% oil with above 50% cítral: eleven other trees yielded more than 2.0% oil or showed a citral content higher than 60%. Tre trees which did not achieve these requere-ments were cut off. The selected trees were left growing for seed production. The resulting seeds will be sown to be further transplanted apart in an area free of undesirable pollination. A second and a third generation of trees shall be identically tested and selected aiming to improve oil yield and quality.

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Recebido para publicação em 30 de abril de 1976.

  • 1
    Trabalho subvencionado pela Fundação de Amparo à Pesquisa do Estado de São Paulo.
  • 2
    Com bolsas de suplementação do C.N.Pq.
  • Datas de Publicação

    • Publicação nesta coleção
      20 Fev 2009
    • Data do Fascículo
      Jul 1976
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