info:eu-repo/semantics/article
Chlorophyll fluorescence emission as a response of pulsed light based-leds in tomato plants
Fecha
2013-02Registro en:
0167-6903
1573-5087
Autor
Olvera González, Ernesto
Alaniz Lumbreras, Daniel
Ivanov, Rumen
Villa Hernández, José de Jesús
De la Rosa Vargas, José Ismael
López Cruz, Irineo
Silos Espino, Héctor
Lara Herrera, Alfredo
Institución
Resumen
The effects of pulsed light based-LEDs at eleven frequencies (0.1, 1, 10, 50, 100, 500 Hz, 1, 5, 10, 50 and 100 kHz) programmed at 50 % duty cycle were analyzed, obtaining important parameters of the fluorescence emission of chlorophyll such as: maximum fluorescence (Fm0), minimum fluorescence, the fluorescence emission in steady state, maximum efficiency of PSII (Fv0/Fm0), the fraction of PSII centers that are open, photochemical quenching, nonphotochemical quenching (NPQ), quantum efficiency of photosystem II (UPSII), electron transport rate (ETR) and quantum yield of CO2 assimilation (/CO2). For the study and validation of the results obtained in the experiments, the analysis of variance (ANOVA) was applied 0for each parameter with confidence intervals of 95 %.