Estudo Eucaliptos

IPEF, n.45, p.1-13, jan./dez.1992

TESTE DE POPULAÇÕES DE Eucalyptus phaeotricha BLAKELY &
McKIE EM ANHEMBI, SP
MARIO FERREIRA
JOÃO WALTER SIMÕES
ESALQ/USP - Depto. de Ciências Florestais
Caixa Postal 9
13400-970 - Piracicaba, SP
LAERTE SCANAVACA JÚNIOR
PAULO EDUARDO TELLES DOS SANTOS
IPEF
Caixa Postal 530
13400-970 - Piracicaba, SP
ABSTRACT - Species of Monocalyptus subgenus are not well studied out of Australia.
The Intensive silviculture for Eucalypts long rotation wood production is a new field of interest in Brazil. At Anhembi Forest Research Station four E. phaeotricha seed lots were included in a provenance trial (CSIRO 10903/NC389, 10903, 9782 and 9782/CAF), established during 1982. The randomized complete blocks design with 3 replications and plots with 7 x 7 plants and spacing 3 x 3 m between plants was adopted. The main conclusions of the provenance test are: a) the seed lots CSIRO 9782 and 9782/CAF, from
Atherton Qld provenance, are the most potential genetic material and belongs to E. phaeotricha (White stringbark) group; b) the seed lots CSIRO 10903 and 10903/NC389 are not potential and belongs to E. globoidea/E. nigra group; c) E. phaeotricha is a high potential species for regions where other species from subgenus Symphyomylthus do not have good site adaptation, mainly in tropical climate conditions.
RESUMO - Os eucaliptos do subgênero Monocalyptus são muito pouco estudados fora da
Austrália, embora apresentem madeira de ótima qualidade para usos múltiplos. Na Estação
Experimental de Ciências Florestais de Anhembi, SP, 4 lotes de sementes de E. phaeotricha das procedências Mt Mullen/Toolara Qld e SW Atherton Qld (CSIRO 10903,
10903/NC389, 9782 e 9782/CAF) foram utilizados na instalação de um teste de procedências em 1982, sob o delineamento estatístico de blocos ao acaso, 3 repetições, parcelas de 49 plantas (7 x 7) , no espaçamento 3 x 3 m. As principais conclusões foram: a) os lotes de sementes de Atherton