scholarly journals Low Light Irradiation-CA Storage of Green Plants

2004 ◽  
Vol 42 (4) ◽  
pp. 353-356 ◽  
Author(s):  
Kazuhiro FUJIWARA
Keyword(s):  
Light Irradiation ◽  
Low Light ◽  
Green Plants

scholarly journals Application of an Automatic Control System of Photosynthetic Photon Flux Density for LED-Low Light Irradiation Storage of Green Plants

2005 ◽  
Vol 15 (4) ◽  
pp. 781-786 ◽  
Author(s):  
Kazuhiro Fujiwara ◽  
Toshinari Sawada ◽  
Yoshikatsu Kimura ◽  
Kenji Kurata
Keyword(s):  
Flux Density ◽  
Blue Light ◽  
Red Light ◽  
Dry Weight ◽  
Photosynthetic Photon Flux Density ◽  
Light Irradiation ◽  
Photon Flux ◽  
Photon Flux Density ◽  
Photosynthetic Photon Flux ◽  
Low Light

A light-emitting diode (LED)-low light irradiation (LLI) storage system was developed for suppressing the change in dry weight and maintaining the quality of green plants during long-term storage. In this system, the carbon dioxide (CO2) exchange rate was maintained at zero by automatically adjusting the photosynthetic photon flux density (PPFD) with a proportional-integralderivative (PID) controller. The voltage supplied to the LEDs was controlled by the difference between the inflow (400 μmol·mol-1) and outflow CO2 concentrations in the storage case. Grafted tomato (Lycopersicon esculentum; scion = `House Momotaro'; rootstock = `Anchor T') plug seedlings were stored at 10 °C for 35 days under four different LLI conditions as a system operating test: fixed red light irradiation at 2 μmol·m-2·s-1, PID-controlled red light irradiation with no blue light, and PID-controlled red light irradiation with blue light at 0.2 or 1.0 μmol·m-2·s-1. The results showed that the automatic PPFD control during LED-LLI helped suppress changes in dry weight during storage as expected. Furthermore, it was found that addition of a low percentage of blue light improved the morphological appearance of the seedlings and reduced the PPFD required to suppress the change in dry weight.

Designing visible-light-driven photocatalyst of Ag3PO4/CeO2 for enhanced photocatalytic activity under low light irradiation

2018 ◽  
Vol 30 (1) ◽  
pp. 415-423 ◽  
Author(s):  
O. N. Syazwani ◽  
Zul Adlan Mohd Hir ◽  
Hayati Mukhair ◽  
Mohd Sufri Mastuli ◽  
Abdul Halim Abdullah
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Irradiation ◽  
Low Light ◽  
Visible Light Driven

scholarly journals Performance and stability of mixed FAPbI3(0.85)MAPbBr3(0.15) halide perovskite solar cells under outdoor conditions and the effect of low light irradiation

Nano Energy ◽  
2016 ◽  
Vol 30 ◽  
pp. 570-579 ◽  
Author(s):  
Yegraf Reyna ◽  
Manuel Salado ◽  
Samrana Kazim ◽  
Amador Pérez-Tomas ◽  
Shahzada Ahmad ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Light Irradiation ◽  
Low Light ◽  
Halide Perovskite
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