Phytotoxicity assessment in lettuce (Lactuca sativa L.) using germination indexes in two organic fertilizers: worm humus and Zophobas morio excreta

 

Tallennettuna:
Bibliografiset tiedot
Tekijä: García-López, Daniel
Aineistotyyppi: artículo original
Tila:Versión publicada
Julkaisupäivä:2025
Kuvaus:Zophobas morio is a beetle specie that can be a potential source for organic fertilizer production from its excreta. In the present work, lettuce seeds were used to evaluate both germination and phytotoxicity through indexes to compare the performance of two organic fertilizers, red worm vermicompost and Zophobas morio excreta. The best response was observed from the red worm vermicompost since it reported a high germination rate (112.45 ± 29.72%) compared to the response obtained by Zophobas morio excreta (25.74 ± 5.87%). Similarly, the indixes of normalized residual germination (IGN) and normalized residual root elongation (IERN) classified the worm vermicompost as a non-phytotoxic compound, while the zophobas extract showed an IGN classified as moderate toxicity and an IERN classified as very toxic. It was concluded that the differences observed between both fertilizers may be due to a higher value of electrical conductivity by the zophobas excreta. The effectiveness of the phytotoxicity method was demonstrated to evaluate the quality of organic fertilizers quickly and efficiently.
Maa:Portal de Revistas TEC
Organisaatio:Instituto Tecnológico de Costa Rica
Repositorio:Portal de Revistas TEC
Kieli:Español
OAI Identifier:oai:ojs.pkp.sfu.ca:article/7508
Linkit:https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/7508
Sanahaku:Fertilizer
compost quality
vermicompost
amendment
fertility
toxic
inhibitory
Abono
calidad compost
fertilidad
tóxico
inhibitorio