1. bookVolume 55 (2006): Issue 1-6 (December 2006)
Journal Details
License
Format
Journal
eISSN
2509-8934
First Published
22 Feb 2016
Publication timeframe
1 time per year
Languages
English
access type Open Access

Comparison Between Open Pollinated Progenies and Hybrids Performance in Eucalyptus grandis and Eucalyptus urophylla

Published Online: 19 Oct 2017
Volume & Issue: Volume 55 (2006) - Issue 1-6 (December 2006)
Page range: 192 - 196
Received: 21 Dec 2005
Journal Details
License
Format
Journal
eISSN
2509-8934
First Published
22 Feb 2016
Publication timeframe
1 time per year
Languages
English
Summary

The cellulose industry in Brazil uses, mainly, hybrids between Eucalyptus grandis × E. urophylla. Not only the volume but also the wood density has great influence in the cellulose productivity, therefore a selection for both characteristics should be done as an alternative to increase the improvement program efficiency. The present work has been carried out with the objective of comparison between Open Pollinated progenies (OP) and hybrids performance in E. grandis and E. urophylla. To do so, 15 OP progenies of E. grandis, 15 OP progenies of E. urophylla, and 15 hybrids between E. grandis × E. urophylla, plus four controls were evaluated. The experiment was carried out from October to November 2001, in three sites, Aracruz and São Mateus, in the Espírito Santo State, and Caravelas, Bahia State, Brazil, in a 14 × 14 lattice design, involving the 49 treatments mentioned plus other progenies not considered in this article, with single tree plots and 40 replicates. Two years later the circumference at breast height (CBH) and the basic wood density (BWD) were evaluated. The hybrids performance for CBH was higher, an average, 38,7% than the OP progenies for both species. Part of the heterosis in relation to parental means could be attributed to the inbreeding depression due to selfing that occurred in the OP progenies and the dominance controlling this character. For the BWD the hybrids performance was the same of the OP progenies. Since there was divergence between the parents, it can be inferred that dominance has no importance for this trait. The negative correlation between the CBH and the BWD could impair the simultaneous selection for both traits, depending on the wood basic density range used by the industry.

Keywords

ASSIS, T. F. DE (2000): Production and use of Eucalyptus hybrids for industrial purposes. Symposium on hybrid breeding and genetics of forest trees, Noosa, QFRI. Australia, 63-74.Search in Google Scholar

BERNARDO, R. (2002): Breeding for quantitative traits in plants. Woodbury, Minnesota: 369p. Stemma Press.Search in Google Scholar

BERTOLUCCI, F. DE L. G., G. D. S. P. REZENDE and R. PANCHEL (1995): Produção e utilização de híbridos de eucalipto. Silvicultura 26, 12-16.Search in Google Scholar

BISON, O., A. M. AGUIAR, G. D. S. P. REZENDE and M. A. P. Ramalho (2004): Inbreeding depression in Eucalyptus clones. Crop breeding and applied biotechnology 4: 459-464.10.12702/1984-7033.v04n04a13Search in Google Scholar

BOUVET, J. M. and P. VIGNERON (1996): Variance structure in Eucalyptus hybrid populations. Silvae Genetica 45, 171-177. Search in Google Scholar

ELDRIDGE, K., I. DAVIDSON, C. HARWOOD and G. VAN WYK (1993): Eucalypt domestication and breeding. Oxford University Press, New York, 288p.Search in Google Scholar

FALCONER, D. S. and T. F. C. MACKAY (1996): Introduction to quantitative genetics. London: Longman Malaysia.Search in Google Scholar

HODGE, G. R., P. W. VOLKER, B. M. POTTS and J. V. OWEN (1996): A comparison of genetic information from openpollinated and control pollinated progeny tests in two Eucalyptus species. TAG. 92: 53-63.10.1007/BF0022295124166116Search in Google Scholar

LIMA, J. T., M. C. BREESE and C. M. CAHALAN (2000): Genotype-environment interaction in wood basic density of Eucalyptus clones. Wood Science and Technology 34: 197-206.10.1007/s002260000041Open DOISearch in Google Scholar

PEREIRA, J. C. D., J. A. STURION, A. R. HIGA, R. C. V. HIGA and J. Y. SHIMIZU (2000): Características da madeira de algumas espécies de eucalipto plantadas no Brasil, Colombo in Embrapa Florestas (Embrapa Florestas. Documentos, 38), Brasília/BR.Search in Google Scholar

RESENDE, M. D. V. DE (2002): Genética biométrica e estatística: no melhoramento de plantas perenes. Embrapa Informação Tecnológica,Brasília, Brasil.Search in Google Scholar

REZENDE, G. D. S. P. and M. D. V. DE RESENDE (2000): Dominance effects in Eucalyptus grandis, Eucalyptus urophylla and hybrids. Symposium on hybrid breeding and genetics of forest trees, Noosa, QFRI. Australia, 93-100.Search in Google Scholar

REZENDE, G. D. S. P. and M. D. V. DE RESENDE (2001): Genotypic evaluation and genotype x environment interaction in Eucalyptus clones selection at Aracruz Celulose S. A., Brazil. In: Iufro International Symposium: Developing the Eucalypt of the Future, 2001, Valdivia. Proceedings. Valdivia: Instituto Forestal - Chile, 2001. v. 1. p. 69-81.Search in Google Scholar

SAS INSTITUTE (2000): SAS: User’s Guide Statistical (version 8.0.) ed. Cary, NC.Search in Google Scholar

STEEL, R. G. D., J. H. TORRIE and D. A. DICKEY (1997): Principles and procedures of statistics: a biometrical approach, 3. ed., Mc Graw-Hill Book Company, New York.Search in Google Scholar

VENCOVSKY, R. and P. BARRIGA (1992): Genética biométrica no fitomelhoramento. Sociedade Brasileira de Genética, Ribeirão Preto, Brasil.Search in Google Scholar

VERRYN, S. D. (2000): Eucalyptus hybrid breeding in South Africa. Symposium on hybrid breeding and genetics of forest trees, Noosa, QFRI. Australia, 191-199 p.Search in Google Scholar

VOLKER, P. W., J. V. OWEN and N. M. G. BORRALHO (1994): Genetics variances and covariances for frost tolerance in Eucalyptus globulus and E. nitens. Silvae Genetics 43(5/6), 366-372.Search in Google Scholar

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