Uso del ácido piroleñoso en la propagación de plántulas de Dioscorea alata L. clon Criollo

Abstract

Pyroleanic acid, also called wood vinegar, is an aqueous liquid produced from the pyrolysis of biomass, which is used for multiple purposes: to improve soil quality, as a rooting agent, biostimulant, biocontrol and foliar fertilizer, among others. The objective of the present work was to evaluate the use of pyroleanic acid in the propagation of Dioscorea alata L. clone Criollo seedlings. A completely randomized experimental design was applied. The experimental variants consisted of immersing healthy tuber fragments for one hour in different doses of pyroleanic acid (0, 5, 10 and 15 ml/L) obtained from marabu plants and then planting them in a substrate composed of 100% NEREA substrate. Fifty days after the healthy tuber fragments were planted, the percentage of sprouting in the total population was determined, and 30 seedlings were randomly taken per treatment and the following morphological evaluations were determined: stem length (cm); number (U), length (cm) and width (cm) of the leaves. With the use of pyroleanic acid, a favorable response was obtained in tuber sprouting, stem length, number, length and width of leaves, as well as in the control of pests and diseases in seedlings of yam clone Criollo, during its propagation in a semi-protected cultivation house. The highest values and the greatest response were achieved with the use of 15 ml/L of pyroleanic acid. 

Keywords: Sustainable agriculture, Bioproducts, Semi-protected growing house, Dormancy.