Propagation of Aloysia citriodora Palau Using Different Cutting Types under Light Intensity
Orivaldo Benedito da Silva *
Federal University of Lavras (UFLA), Lavras, MG, Brazil.
Ademir Goelzer
Federal University of Lavras (UFLA), Lavras, MG, Brazil.
Cleberton Correia Santos
Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil.
Elissandra Pacito Torales
Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil.
Néstor Antonio Heredia Zárate
Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil.
Maria do Carmo Vieira
Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil.
*Author to whom correspondence should be addressed.
Abstract
Aims: The aim of this study was to evaluate the effect of types of cuttings and light intensity on cidró vegetative propagation.
Place and Duration of Study: Medicinal Plants Garden, Federal University of Grande Dourados (UFGD), Dourados, state of Mato Grosso do Sul, Brazil, September to November 2016.
Methodology: The experiment was carried out under two light conditions (shaded and full light), evaluating three types of cuttings (softwood, semi-hardwood and hardwood). Experimental design was a 2 x 3 factorial randomized complete block design (RCBD) with four replications.
Results: Hardwood cuttings showed the highest survival rates (86% and 82%), regardless of light. Highest fresh weight (0.6062 g plant-1) and dry mass (0.2987 g plant-1) with a leaf of 44.57 cm2 were from hardwood cuttings, regardless of the light, while the longest root length were those of softwood cuttings under full light. Physiological indices varied as a function of light intensity, The highest values of leaf area ratio (46.11 cm2 g-1) and specific leaf mass (0.0037 g cm-2) occurred in cuttings under full light.
Conclusion: The vegetative propagation of cidró can be carried out using the hardwood portion of the cutting branch, under full light.
Keywords: Cultural methods, medicinal plants, cuttings production, full light; shaded.