Parametric time-to-event analysis to evaluate the germination of faba bean and lentil seeds
Year: 2025
Type: article
Abstract: This study aimed to evaluate the germination of faba bean (Vicia faba L.) and lentil (Lens culinaris Medikus) seeds after disinfection with sodium hypochlorite and acetic acid, using parametric time-to-event analysis. The germination was evaluated under the effect of four concentrations (0.005%, 0.05%, 0.1%, and 0.5%) of sodium hypochlorite and acetic acid in addition to the control treatment (0%). Seed germination was counted daily for seven days. Seeds that did not germinate by the end of this period were considered censored. The main parametric models used in the time-to-event analysis, Exponential, Weibull, Log-normal, Log-logistic, Logistic, and Gaussian, were adjusted for each product and concentration, plus the control. The model selected was the Log-logistic, and the choice was based on Akaike and weighted Akaike information criteria. The adequacy of the selected model was verified by Cox-Snell residuals. The germination curve estimated by the Log-logistic model demonstrated an inverse relationship between the increase in concentrations and the percentage of germination. It is concluded that to maintain germination above 80% for both crops, the application of sodium hypochlorite should not exceed 0.1%. In the case of acetic acid, concentrations should not exceed 0.05% for Vicia faba and 0.005% for Lens culinaris. The parametric survival model effectively estimated the seed germination.
Source: Brazilian Journal of Biometrics
Authors: Verônica Manhães Saint’Clair, Marciel Lelis Duarte, Mauricio Dos Anjos da Silva, Lausanne Soraya de Almeida, Sebastiao Martins Filho
Institution: Universidade Federal de Viçosa
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4413987236