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Revista Brasileira de Fruticultura

versão impressa ISSN 0100-2945versão On-line ISSN 1806-9967

Resumo

FERREIRA, Gisela et al. Emergence and development of passion fruit plant from seeds treated with bio stimulant. Rev. Bras. Frutic. [online]. 2007, vol.29, n.3, pp.595-599. ISSN 0100-2945.  http://dx.doi.org/10.1590/S0100-29452007000300034.

The aim of this work was the study of the effects of bio stimulants in the emergence and development of Passiflora edulis Sims.f. flavicarpa Deg. plantlet. The experiment was performed under shelter with controlled temperature (25ºC), at the Dep. of Botanic, Bioscience's Institute, UNESP, Campus de Botucatu, state of Sao Paulo, Brazil. The seeds were treated with different concentrations: 0 (check), 4, 8, 12, 16 and 20 ml of bio stimulant/kg of seeds and were sowed on polystyrene trays containing commercial substratum. The employed bio stimulant is comprised of 0.005% of indolylbutyric (auxin), 0.009% of kinetin (cytokine), and 0.005% of gibberellic acid. It was used the completely randomized blocks delineation with six treatment and five replications of 24 seeds. The estimation of the emergence percentage of plantlets were performed weekly and the stem and root lengths, stem diameter, number of leaves, leaf area and root, stem and leaf dry matter were performed 35 days after sowing. The data were submitted to analysis of variance and polynomial regression at 5% of probability. The concentrations of 12 and 16 ml of bio stimulant/kg of seed applied to the seeds have promoted the highest percentage of emergence and development of the plantlets.

Palavras-chave : Passiflora edulis f. flavicarpa Deg.; propagation; vegetal regulators; germination.

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