Growth and development of Eucalyptus grandis progeny shoots in vitro / Crescimento e desenvolvimento de brotações de progênies de Eucalyptys grandis in vitro

AUTOR(ES)

Daruska Cavalcante Cardim

DATA DE PUBLICAÇÃO

2006

RESUMO

The aim of this work was to evaluate the growth and development of eucalyptus grandis progeny shoots in vitro. Shoots from distal hypocotyl explants of 10 progenies were cultivated in the JADS (CORREIA et al., 1995) tissue culture medium. The culture medium was suplemented with 0,5 mg L-1 de BAP e 0,1 mg L-1 de IAA. Three subcultures where made and at 63rd day of culture, the fresh and oven dry weight and number of shoots were evaluated. At the elongation phase, using the culture medium suplemented with 0,1 mg L-1 de BAP, three subcultures were made and at the 63rd day of culture, fresh and oven dry weight, shoot height and rooting percentage were evaluated. There were differentiated progeny responses. Some showed higher fresh and oven dry weight production and others showed higher elongation rates and rooting percentage.

ASSUNTO(S)

growth eucalyptus crescimento vegetal development eucalipto in vitro fertilização “in vitro” progenies desenvolvimento vegetal elongation anatomia vegetal recurso genético vegetal rooting

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