OptoLeaf
OptoLeaf is a film that measures the integrated amount of solar radiation/light quanta over intervals from 1 day to 3 weeks. The film enables measurements at places where a conventional pyranometer cannot measure. Multiple strips can be placed on a single sample at various orientations. See OptoLeaf Brochure.
OptoLeaf Tape
Features
- small and light because it is a film
- placeable anywhere, even underwater
- convenient for simultaneous multi-point measurements as it can be prepared in large numbers
- measures both the amount of light quanta and solar radiation
- cut film to size required, so is low cost
Applications
- measurement of solar radiation at locations on and within the canopy of a crop or row of plants
- measurement of solar radiation at plant leaf surfaces at various orientations to the sun
- measurement of solar radiation in greenhouse (a calibration curve is required for applications in greenhouses)
- measurement of solar radiation within a seagrass meadow
OptoLeaf Reader with two tape sections
OptoLeaf Tape on plant
Papers describing the use of OptoLeaf:
Kumagai 2017 “Effect of early sowing on growth and yield of determinate and indeterminate soybean(Glycine max (L.) Merr.) cultivars in a cool region of northern Japan”
Kawamura et al 2005 “The applicability of a color acetate film for estimating photosynthetic photon flux density in a forest understory”
Hikosaka et al 2001 “A simple formulation of interaction between individuals competing for light in a monospecific stand”
T. YOSHIMURA , T. ISHIKAWA & K. KOMIYAMA (1990) SIMPLE
MEASUREMENT OF INTEGRATED SOLAR RADIATION, International Journal of SOLAR
ENERGY, 9:3, 193-204, DOI: 10.1080/01425919008941485