LED4Plants
Efficient, target-orientated production of medicinal and herbal plants with FutureLEDs
Presented by Jenny M. Tabbert November 23rd, 2018
Problem description
Year-round production impossible
– Elevated susceptibilty to diseases – High energy costs – Lower biosyntheses rates – Low efficiency of supplementary – Decreased gain of biomass lighting systems
Spectra
Spectral range of a high pressure sodium lamp
Spectral range of a fluorescent lamp Spectral range of FutureLEDs ] 2 [W/m att w PPFD = Photosyntetically active photon flux density in the range of 400-700 nm
PPFD 200 PPFD 100
2 W/m (in total) 49,77 25,65 3 Basil experiments
Ocimum basilicum L. var. `cinnamomum` (Cinnamon) `odoratum` (Anise) `thyrsiflorum` (Thai Magic) `purpureum` (Dark Opal)
Day-Night rhythm 16/8 h Temperature 18/23 °C 4 plants per pot 3 Basil experiments
Ocimum basilicum L. var. `cinnamomum` (Cinnamon) `odoratum` (Anise) `thyrsiflorum` (Thai Magic) `purpureum` (Dark Opal)
4 independent replicates Daily shuffling of trays
2g/L Osmocote Exact Mini 3-4M Intensity results
Weekly aquisition of basil growth and development Recording of fresh and dry weight matter (± shoots) Analysis of plant compounds in progress…
4 Weeks old basil plants Intensity results
5 Weeks old basil plants Ocimum basilicum L. var. `cinnamomum`
Marketable after 5 weeks
Marketable after 4 Weeks
Flowering Development controllable, predictable, Biomass fast Ocimum basilicum L. var. `cinnamomum`
PPFD 100 PPFD 200 PPFD 100 PPFD 200
Higher light requirement at seedling stage
Chlorosis (light deficiency)
PPFD 100 PPFD 200 PPFD 100 PPFD 200
Light intensity should not exceed intensity measured at canopy level at marketability
Production of anthocyanins Marketability and reduction of leaf area Ocimum basilicum L. var.
Anise Thai Magic Dark Opal
dwarf basil Homogeneous growth and development No flower production Market-ready after 4 and 5 weeks, respectively Market-ready after 4,5 weeks
Optimal light conditions PPFD 200 optimal Addition of ultraviolet radiation
PPFD 200
UV-A UV-B ] ] 2 2 W/m (in total) 47,66 54,7 thereof UV-A 9,1 0,1 Watt [W/m thereof UV-B 0,22 0,9 UV results
No growth and developmental differences between both UV spectra
In comparison to PPFD 200 without UV, marketability is reached ½ week later Turmeric in the phyto chamber Comparison of PPFD 200 ± UV-A/B
Development of Curcuma longa L. after 9 weeks
Day-Night rhythm 12/12 hours 84 rhizoms Analyses of leafs and rhizomes via Temperature 22 °C Osmoform Permanent (3,1 g / 1,55 L soil) Hydrodistillation, GC-FID and HPLC Humidity 60% …Harvest after 4 and 6 month
Turmeric in the phyto chamber Comparison of PPFD 200 ± UV-A/B
Development of Curcuma longa L. after 9 weeks Curry tree (Murraya koenigii)
In vitro culture of cuttings
Seed shipment Thyme in the green house Comarison of Sunlike-LEDs with other supplementary lighting systems in fall/winter
Thymus vulgaris (German Thyme) Thymus fragantissimus (Orange Thyme)
W/m2 53,18 (Gesamt) PPFD 244 ] ] 2
1 m Watt [W/m
1 m [W/m2] Thank you
Jenny M. Tabbert [email protected] 030/8304 2325
Königin-Luise-Str. 19 15194 Berlin-Dahlem