Updated: LED Grow Lights used in Leafy Green Trials

Specialty Greens experiment is going well. In the first eight-ten days, Specialty Greens saw little difference between the LED lights and the T-5 lights, but as we approached the two week mark Specialty Greens began to see significant differences, as seen in the photos. There does not seem to be an appreciable difference between the two LED light set up and the three light set up. The main difference I am noticing is that there is a bit less color in the leaves of lettuce produced under the LED lights. There is however, amazing growth and in looking at the photos of the Mizuna leaves, it's clear that as a commercial grower, Specialty Greens could get two, possibly three harvests out in 30 days. Overall, everything is growing well and if were it not for this experiment, Specialty Greens would have pulled some of the crops a week ago (e.g., kale, mizuna, some lettuces).

Chard under Two LEDs

Chard under Three LEDs

 

 

Specialty Greens also decided to compare Hort Americas LEDs to T-5 lights. In these photos Specialty Greens tried to show the visible difference between the plants grown under the LED lights (in each photo they are the larger plants) vs growing under T-5 lights and the incredible difference between the small (background) and large (foreground) Mizuna leaves

 

Mizuna grown under LEDs on Left, T-5's on right

 

Mizuna grown under LEDs on Left, T-5's on right

Also showing the difference in Chard growing under LED lights (left) vs T-5 lights. (right)

Experiment information provided by Patty Phaneuf from Specialty Greens, and Posted by Maria Luitjohan from Hort Americas.
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