Abstract

REYES-PEREZ, Juan José et al. Emergency and agronomic characteristics of Cucumis sativus after the application of chitosan, Glomus cubense and humic acids. Biotecnia [online]. 2021, vol.23, n.3, pp.38-44.  Epub Mar 07, 2022. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v23i3.1427.

The objective of the research was to evaluate the emergence behavior and agronomic characteristics of the cucumber (Cucumis sativus L.) crop with the application of chitosan, mycorrhizal fungi and humic acids under protected conditions. The research was carried out in a greenhouse and a laboratory of Molecular Biology and Microbiology of the State Technical University of Quevedo, Ecuador. The vegetative material was the commercial varieties of cucumber (Inivit and Racer), with chitosan (3 g L-1), Glomus cubense fungi (20 spores/100 g of soil) and humic acids (1:30 v/v) treatments. Emergence, morphometric variables, growth indicators and production indicators were evaluated. The results indicated that the Racer variety registered the highest percentage of emergence, and the Glomus cubense fungi presented the highest emergence (71.7%). On the other hand, the Glomus cubense fungi showed the highest fresh biomass (22.6 g) in the Inivit variety. Chitosan (285.8 g) and the Glomus cubense fungi (277.9 g) influenced fruit weight. Chitosan in the Inivit variety (5703.7 g) generated the highest yield. In general, it was found that the application of the Glomus cubense fungi induces an increase in emergence, fresh biomass, dry biomass of the cucumber crop, while the application of chitosan in both varieties generated higher yields.

Keywords : Biostimulants; biofertilization; production; germination; biomass.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )