Uso de extrato de tubérculos de Cyperus rotundus L. na clonagem da Cnidoscolus quercifolius Pohl. pelo processo de alporquia.

Abstract

In the literature, reports are found in the use of aqueous extracts of Cyperus rotundus L. (Wild Boar) tubercles as promoters of rooting and improvement of the quality of formed roots, by the fact of this species owns high concentrations of auxins. Based on the above considerations, the objectives of this work were to analyze the efficiency of different concentrations of aqueous extracts of Cyperus rotundus L. tubercle, in the rooting of Cnidoscolus quercifolius (Faveleira) layers and also to compare the action of the species aqueous extract with the application of synthetic auxins as the Indole-Butyric Acid (IBA). Aqueous extracts of Cyperus rotundus L. tubercle were evaluated in concentrations of 0.0% (control, 100% distilled water), 2.5%, 5.0%, 7.5% and 10%. An additional control of the synthetic auxin Indole- Butyric Acid (IBA) in a concentration of 6.0 g L-1 was also used. Through regular observations, it was found that the emergence of adventitious roots on the substratum surface happened finally in absolute control treatment. The highest number of rooted layers was observed in the treatment with the highest concentration of the aqueous extract of Cyperus rotundus L (10%) tubercle. In general, it was observed that the use of natural auxin have positively influenced all the analyzed variables and significative differences weren’t found between the use of natural auxin and the use of synthetic auxin for any of the variables.