For many plants, sprouting, flowering, fruiting are determined by seasonal variations. Here we look at PSS and Grow Lights and how they achieve the same influence.

For many plants, sprouting, flowering, fruiting are determined by seasonal variations. Here we look at PSS and Grow Lights and how they achieve the same influence.
Handbook Series
Everything thing you need to know to get started on Indoor Farming, PAR meters, and Grow Lights – history, industry, vertical farming, PPFD, types of lights, photosynthesis and more!
About UPRtek
UPRtek (est. 2010) is a manufacturer of portable, high-precision light measurement instruments; Handheld Spectrometers, PAR meters, Spectroradiometers, Light Calibration Solutions.
UPRtek HQ, R&D and manufacturing are all based out of Taiwan, with Worldwide representation through our certified Global Resellers.
Announcements
Valentine’s Day is approaching, and you're an anxious indoor rose farmer trying to encourage your buds to bloom in time.
The good news is that researchers have begun to understand the triggering mechanisms for seed germination, flowering, and fruiting, involving grow-light strategies
Now indoor farmers are using this information with “Spectral” PAR meters, measuring grow lights for a light metric PSS (Phytochrome Photostationary State) to trigger photomorphogenesis (i.e., plant transformations caused by light).
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