Associate Professor, Roberto Lopez, PhD investigated the effects of supplemental lighting (in greenhouses) from Chameleon Plasma Grow Lighting, HPS, and LED on the seedling growth of a variety of ornamental bedding plant crops.
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Master Grower, Isaac Brantingham utilized Chameleon Plasma Grow Lighting to study the effects of Full-Spectrum Light-Nutrition on ornamental color in comparison to High Pressure Sodium.
“All Plasma plant samples were fuller, with shorter internodes and better color in comparison to HPS plant samples”
Gro n Sell – Master Grower, Aston Arcidiacono, utilized Chameleon Plasma Grow Lighting to study the effects of Full Spectrum Light Nutrition on ornamental plugs and transplants in comparison to High Pressure Sodium.
“The root mass under the plasma appears to be more substantial than the HPS samples on the majority of the plants we trialed. Our vegetative Sunpatiens that are typically very vigorous growers, requiring several applications of PGR’s (Plant Growth Regulators) were put under the Plasma Grow Lighting. We were very impressed with how short/tight they stayed without any PGR applications. So we would say that your Plasma Grow Lighting helped control stretching on Sunpatiens without the need for PGR’s.”
Research Scientist – Brandon Jewel PhD. compared the effects of quantum spectrum based on light type from sole source lighting affecting the vegetative growth and yield of hydroponically grown red butterhead lettuce.
Research Scientist, Natalie Bumgarner, PhD utilized Chameleon Plasma Grow Lighting to study the effects of Full Spectrum Light Nutrition on lettuce (from seed to harvest) in comparison to Metal Halide.
I ran two trials. The first from Jan. 10th through Mar. 14th and the second from Feb. 24th through April 14th. In both of these trials, the lights were on for eight hours per day (on a timer). Two lights each (300W plasma and 400 w halide) were placed at 34″ from the top of the channel for each 10′ channel and 4 channels (32″ span) across were harvested in each lighted area. In terms of instantaneous light readings, the average for the grid was 68.3 uMol.m2.sec for the plasma and 82.9 uMol.m2.sec for the halide. There was a steeper drop off at the end of the channel for the plasma light that led to the lower average- light was mire similar nearer the center of the light. A red bibb (Teodore) and a green bibb (Flandria) were both grown in both trials (30 plants of each cultivar were included in the average weights).
I just used a 95% confidence interval for the averages to make statements about whether differences were present. In the first run, the Flandria under halide was higher than Flandria under plasma and both were higher than the unlit section of Flandria. In the first run, Teodore under halide and plasma were similar and both were higher than the unlit. In the second run, yields from lettuce under all three lighting treatments were similar for both the Flandria and the Teodore. An adjustment I would make next time would probably be to increase the lighting duration a bit to increase the added DLI. Also, the second trial did go into April, so natural daylight may have decreased lighting impacts. I was being careful to not reduce quality as sometimes increases in tipburn occur when lights are added- this was kept to a minimal amount in these studies.
Department of Plant Sciences Research Professor, Chiwon Lee, PhD investigated and confirmed that Romaine Lettuce grown under Chameleon Plasma Grow Lighting had 311% more weight, had better look and taste, and had better nutritional qualities than plants grown under HPS. There was also a reduced dependency on plant growth regulators and pesticides.
Department of Tropical Plant and Soil Sciences – Research Professor, Kent Kobyashi, PhD utilized Chameleon Plasma Grow Lighting for photo-biology and hydroponic crop modeling int he study of micro-greens in relation to traditional light sources.
Light Source Effects on Hydroponically-grown Miniature ‘Little Gem’ Lettuce
University of Hawaii Lettuce – There is growing concern about food safety, environmental impact, and efficient energy usage in agricultural production systems. Producing lettuce under artificial lighting can be a solution addressing these concerns. Light emitting diodes (LEDs) offer the advantage of a narrow light spectrum, low power consumption, and little heat production. Light emitting plasma offer high light intensity, sun-like full spectrum, and long life. The objective of this study was to determine the effects of different light sources on the growth of miniature ‘Little Gem’ romaine lettuce in a non-circulating hydroponic system. Lettuce seedlings were started in Oasis cubes, which were transferred to net pots and put in 1.9-liter containers containing a hydroponic nutrient solution. The solution was Hydro-Gardens’ Hobby Formula 10-8-22 hydroponic fertilizer with added magnesium sulfate (9.8% Mg). The lettuce was grown in a lab under different light treatments—red+blue+white LEDs, light emitting plasma (LEP), and high output T-5 fluorescent lights. The light level was 253.7 µmol·m-2·s-1 with an air temperature 20.9 °C. At the end of the study, the fluorescent lights resulted in significantly greater plant height than the LED and LEP treatments. There was no significant difference in plant height between the LED and LEP treatments. Percent partitioning of dry weight to roots was greater with the LEP treatment than the fluorescent lights treatment. There was no significant difference in percent partitioning of dry weight to roots between the LEP and the LED treatments and between the LED and the fluorescent lights treatments. There were no significant differences in shoot dry weight, root dry weight, total dry weight, and percent partitioning of dry weight to shoots among the treatments.
Department of Physics & Astronomy – Research Professor, David Tanenbaum PhD reports that Chameleon Plasma Grow Lighting provides a broad area of illumination with a continuous spectrum at a fraction of the cost of competitive technologies such as Xe, metal halide, and sulphur lamps.
Research Professor of Molecular Biology, Stephen Mayfield, PhD, utilizes Chameleon Plasma Grow Lighting for engineering algae for the production of therapeutic proteins and biofuels, selecting high-light resistant mutants of Chlamydomonas Reinhardtii (green microalgae).
Professor, Renee Richer, PhD utilizes Chameleon Plasma Grow Lighting for investigating the interactive effects of light levels and other environmental factors on bioactive compound production by desert cyanobacteria. Project targeting neurodegenerative diseases and their treatment.
(Article Snippet from Greenhouse Product News – Sept. 2015)
High-intensity (supplemental) lighting increases growth.Photosynthetic lighting delivers a much higher intensity, typically around 50-75 μmol·m-2·s-1, but even higher intensities are used on high-wire vegetable crops. This type of lighting increases photosynthesis and during periods of low light, it can accelerate rooting and increase stem diameter, branching and flower number of ornamentals.
Plugs and liners that are lighted typically flower earlier, sometimes by as much as one to two weeks. However compared to photoperiodic lighting, it is much more expensive to install and operate, so its use is generally on high-value crops such as plugs and liners, and on crops when the harvestable yield increases with light quantity such as fruiting vegetables and cut flowers.
End of Article Snippet
(see coverage and intensity values below to correlate article recommendations as they apply to 500w Plasma Grow Lighting)
Average PPFD – 60.50 μmoles/m2/s
Average DLI – 5.23 mols
Date Published: 08/08/2016
Category: Grow Light, Grow Lights, Grow Lighting
Average Rating: 5 Stars
Product ID: 00001453
MSRP: $1395 USD
Availability: In Stock
Reviewer: Master Growers
Review Rating: 5 Stars
Date Published: 08/08/2016