Propagação vegetativa da pimenteira-do-reino : avaliação de cultivares, níveis de AIB e substratos
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Data
2012-04-26
Autores
Secundino, Welington
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Editor
Universidade Federal do Espírito Santo
Resumo
Vegetative propagation by cuttings has largely contributed to the multiplication of
several commercial species, among them the black pepper. Success in rooting is
determined by a complex interaction between environmental and endogenous
factors. The objective of this work is to investigate the course of cultivars of black
pepper to indole-3-butyric acid (IBA) and different substrates. The experiments were
conducted in a greenhouse equipped with irrigation system, type intermittent mist,
located in the Centro Universitário Norte do Espírito Santo (CEUNES) of the
Universidade Federal do Espírito Santo (UFES) in São Mateus, ES. In the first
experiment, we investigated the rhizogenic course of black pepper cultivars by
different concentrations of IBA. We used a randomized block design, with plots
arranged in a factorial 3x5: three cultivars (Bragantina Iaçará and Guajarina) x five
IBA concentrations (0, 1500, 3000, 4500 and 6000 mg kg-1
), with four 16 replicates of
each pile. It is recommended for cv. Bragantina immersion of only the basal and cvs.
Iaçará Guajarina and total immersion of the cuttings in IBA, and the concentration
recommended for cultivars is 4000 mg kg-1
. In the second experiment,
xi
we analyzed the rooting of cultivars of black pepper on different substrates. The
experimental design was completely randomized in a 3x4 factorial design: three
cultivars (Bragantina Iaçará and Guajarina) x four substrates (soil + organic
compound - 18%, Vermiculite, semi-carbonized rice husk and Bioplant®
), with four 16
replicates of each pile. There are differences among cultivars of black pepper and the
characteristics related to the root system. The vermiculite was the best and semicarbonized rice husk is not recommended for rooting cuttings of cvs. Bragantina
Iaçará and Guajarina.
Descrição
Palavras-chave
Piper nigrum L. , Genotypes , Genótipos , Cuttings , Estaquia
Citação
SECUNDINO, Welington. Propagação vegetativa da pimenteira-do-reino : avaliação de cultivares, níveis de AIB e substratos. 2012. 58 f. Dissertação (Mestrado em Agricultura Tropical) - Universidade Federal do Espírito Santo, São Mateus, 2012.