Announcements

Job offersmore »



Tweeting Growers

Top 5 - yesterday

  • No news has been published yesterday.

Top 5 - last week

Top 5 - last month

Exchange ratesmore »




"Lime, green and purple LEDs produce high red lettuce yields"

Leafy greens are desirable crops for daily eating due to their nutritive value. A new study shows that red lettuce Rouxai grown under specific LED spectra can have significantly higher yields as well as greater concentrations of anthocyanins and carotenoids.

The LUXEON SunPlus Lime + Purple LEDs performed best in terms of yield (fresh weight) and antioxidant levels. The spectrum of this light source includes output in the far red range (700-800 nm) that can boost lettuce yields. The Valoya PC LEDs produced greens of comparable yield but statistically lower levels of antioxidants, indicating that the spectral photon distribution of phosphor down conversion can have different effects on crop quality. In summary, these data suggest that growth and nutrition are optimized using PC LEDs with strong royal blue, green, deep red and far red components found in the combination of LUXEON SunPlus Lime + Purple LEDs.

The spectra that performed best for both yield (fresh weight) and nutrient concentrations were the LUXEON SunPlus Series Lime + Purple and Purple + Green LEDs. To effectively grow Rouxai red lettuce and similar crops in indoor environments, the use of Lime + Purple and Purple + Green LEDs from Lumileds demonstrated significant advantages.

Access the full study at Lumileds

Publication date: 2/21/2018

 


 

Other news in this sector:

6/22/2018 Tomato sorting line gets second life in Australia
6/21/2018 Prototype ion-selective sensors ready for testing this year
6/21/2018 New type of photosynthesis discovered
6/20/2018 "Add durability to your favorite watering tool"
6/20/2018 "A single solution for all of your processes"
6/20/2018 Creating intelligent plants with botanical sensors
6/19/2018 Crop estimate with the new iPhone X from HortiKey
6/19/2018 India: Assam to make vegetables and flowers centre commercially viable
6/15/2018 New horticulture grow lamp ensures higher output
6/14/2018 "Three-in-one soil sensor boosts yield in greenhouses"
6/12/2018 "Automation is great, but only if it works"
6/12/2018 "LED horticulture lighting revolutionizes grow economics"
6/11/2018 New toplight for controlled environment agriculture
6/8/2018 Autogrow uses Alexa to create talking AgTech system
6/7/2018 Tomato growers see increased yields with light recipes
6/6/2018 New ‘superpowers’ in greenhouse automation
6/6/2018 "Less shadow and optimum insulation"
6/5/2018 US: Startups compete for $250,000 in ag automation competition
6/5/2018 Promoting the Netherlands and its agricultural sector in Kazakhstan
6/4/2018 Transforming a pepper to hydrangea nursery