Abstract
The seeds of Plukenetia polyadenia have high levels of unsaturated fatty acids and are used as medicine and food for native people in the Peruvian and Brazilian Amazon. The objective of this study was to develop a method for vegetative propagation of Plukenetia polyadenia by rooting of cuttings. The experiment was laid out in a randomized complete block design with 12 treatments and 3 replications of 8 cuttings, in a 3 × 4 factorial arrangement. The factors were: 3 levels of leaf area (25, 50 and 75%) and 3 indole-3-butyric acid - IBA concentrations (9.84, 19.68 and 29.52mM) and a control without IBA. Data were submitted to analysis of variance and means were compared by Tukey test at 5% probability. Our results show that the use of cuttings with 50% of leaf area and treatment with 29.52mM of IBA induced high percentages of rooting (93%) and the best root formation. Vegetative propagation of Plukenetia polyadenia by cuttings will be used as a tool to conserve and propagate germplasm in breeding programs.
Highlights
Plukenetia (Euphorbiaceae) is a pantropical genus of lianas and scrambling vines
Rooting cuttings of Plukenetia volubilis is possible using 9.84mM of indole-3-butyric acid (IBA) (Cachique et al, 2011) and the main goal of this study was to develop a method for vegetative propagation of Plukenetia polyadenia by rooting cuttings in sub-irrigation propagators
There was no significant interaction between levels of leaf area and concentrations of IBA on rooting variables studied, studied factors act independently in the rooting process
Summary
Plukenetia (Euphorbiaceae) is a pantropical genus of lianas and scrambling vines. Of the 20 known species, 12 are present in the Neotropics, 7 in Africa and Madagascar and 1 in Asia (Bussmann et al, 2009, 2013).Plukenetia polyadenia (“amahua”) grows in humid tropical rainforests, at altitudes from 0 - 1,000m. Plukenetia (Euphorbiaceae) is a pantropical genus of lianas and scrambling vines. Of the 20 known species, 12 are present in the Neotropics, 7 in Africa and Madagascar and 1 in Asia (Bussmann et al, 2009, 2013). Plukenetia polyadenia (“amahua”) grows in humid tropical rainforests, at altitudes from 0 - 1,000m. Its distributed in the Guianas, eastern Venezuela and the Amazon basin of Ecuador, Peru, Bolivia and Brazil (Gillespie and Armbruster, 1997). Its seed oil is used by native people of the Brazilian Amazon against arthritis and rheumatism, spreading it on the arms and legs to reduce the pain and inflammation, and presents antinociceptive activity without toxicity (Mota et al, 2015). Native communities in Loreto, Peru use its seeds as food
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