Osram unveils grow light system for horticulture research

Researchers and modern agriculturists can use Osram’s new LED-based plant luminaire system Phytofy RL in the lab or in climatic chambers in order to develop new plant-specific light and growth recipes. These recipes can lead to desired outcomes in plant quality, yield and flavour.

Various light wavelengths and intensities allow selective intervention in the metabolic processes of agricultural crops and ornamental crops. Features can be influenced in this way include yield, colouration and taste.

The latest research shows that not only is this process impacted by photosynthetically active radiation (PAR) – in the range of 400 to 700 nanometers (nm) – but that shorter and longer wavelengths also influence plant development.

With Phytofy RL, six spectral channels – from a natural far-red endofday light to UV light – can be addressed individually and the photosynthetic photo flux density (PPFD) planned and controlled precisely in real time: 385 nm, 450 nm, 521 nm, 660 nm, 730 nm as well as a warm white channel with 2,700 Kelvin. At the same time, the large number of LEDs in the fixture allows a higher photosynthetic photon flux (PPF).

A special feature of the system is its highly uniform light distribution. The calibrated system furthermore supplies a precise irradiance map, calculated by the software with no quantum flux measurements required.

Use of Phytofy RL allows for evaluation of the most varied light recipes, without having to change luminaires between individual tests. Diverse combinations of wavelengths also can be programmed, in different light profiles and across the entire photoperiod. In addition, users get five light recipes following registration, which have been specially developed by Osram.

Phytofy RL is already being used by NASA and Michigan State University. Osram is also using it to carry out research of growth, anthocyanins and taste, conducted in a climate chamber at the TU Munich.


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