Access the full text.
Sign up today, get unlimited access with DeepDyve Pro!
fluorescence , information about changes in the efficiency of photochemistry and heat dissipation can be gained . Although the total amount of chlorophyll fluorescence is very small (only 1 or 2% of total light ...
conditions can be enhanced by supplementation using fluorescent lamps, high-pressure sodium lamps, metal halide lamps, or LED lamps [28–33]. LEDs are considered a suitable light source for inter- lighting ...
and with Chl a fluorometry in general. This discussion includes a review of the most commonly used Chl a fluorescence parameters. Chlorophyll fluorescence , imaging, photochemistry, photosynthesis. Received 12 ...
not continue to increase with the increase of PPFD. Under the condition of S5, the chlorophyll content of tomato leaves did not accumulate sufficiently, indicating that the LED light source used for artificial ...
Abstract Chlorophyll fluorescence is a non-invasive measurement of photosystem II (PSII) activity and is a commonly used technique in plant physiology. The sensitivity of PSII activity to abiotic ...
between mesophyll conductance (gm) modelled from mesophyll anatomy ( using the anatomical model of Niinemets et al., 2003) or combined gas exchange/ chlorophyll fluorescence methodology (Harley et al., 1992 ...
) and chlorophyll a fluorescence (shown in red). LET, linear electron transport; CET, cyclic electron transport. Fig. 1. View largeDownload slide Photosynthetic energy partitioning at the leaf level and the light use ...
at ambient CO2 levels. Lights used to generate the leaf gas exchange curves were specially designed LED flood lights (PAR 38, LSGC) as well as an HPS luminary. LEDs produced the following peak wavelengths: red ...
, 530, 630, 660, and 735 nm. For the experiment with the 385 nm LEDs , Heliospectra RX30 lamps were used . Full light spectra were recorded with a JAZ spectrometer (Ocean Optics, Dunedin, FL, USA). Lamps ...
light sources together. During the treatment, chlorophyll fluorescence was measured to record the status of the plants, as shown in Fig. 1. The high light intensity was approximately the same as full ...
Access the full text.
Sign up today, get unlimited access with DeepDyve Pro!