Plant Growth

IL1750 Plant Growth Radiometer System

Meter: IL1700 Research Radiometer
Detector: SED033/PAR/W
Dynamic Range: 2x10-10 to 4x10-1 micro-Einsteins/sec/cm2
Spectral Range: 410 to 770 nm, quantum response

IL1450 Plant Growth Radiometer System

Meter: IL1400A Radiometer / Photometer
Detector Type: SEL033/PAR/QNDS1/W
Dynamic Range: 3 nE/sec/m2 to 10 mE/sec/m2
Spectral Range: 410 to 770 nm, quantum response

The new PAR detector, developed through the combined efforts of International Light electro-optical engineers and a team of plant physiologists, is designed to measure the effect of light on plant growth. Calibrated in micro-Einsteins per second per unit area, the PAR detector gives a flat quanta response through the three primary plant growth bands: Blue, Red, and Far Red. This gives a photon weighted measure of the effective irradiance in a single calibrated reading. The detector can also be calibrated to read out in moles (1 mol=1 Einstein).

We also offer filters for each individual plant growth band (TBLU, TRED, and TFRD), for wavelength-specific research into the photobiological effects of light on plants. These filters can be incorporated into an interchangeable system for use with a single detector, or multiplexed using several detectors and the A415 Detector Multiplexer.


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Webmaster · 02.November.2000