Efecto de la longitud de tallo, desinfección y sustrato en el enraizamiento de estacas de protea spp.

Abstract

The objective of this thesis was to evaluate the effect of cutting length, disinfection methods, and substrate type on the rooting of Protea spp. cuttings as an alternative for optimizing vegetative propagation in nurseries. The research was conducted using a completely randomized experimental design, considering different combinations of substrates, disinfectants, and cutting lengths. The results obtained showed 0% rooting in all the treatments evaluated, which was mainly attributed to the high incidence of Fusarium spp., a pathogen that caused basal rot, progressive stem necrosis, and death of the plant material during the propagation phase. The presence of the pathogen was a determining limiting factor, nullifying the possible positive effect of technical variables such as cutting length, substrate type, and the use of growth regulators. It’s recommended that the trial be repeated using completely healthy plant material.