rose wine are red , violets are blue , it is said . But other plants can benefit from red and blue color as well . Blue and red LED light have testify peculiarly effective when it comes to speeding production times and optimizing plant life , a study on Osteospermum express out by Senmatic and a Danish greenhouse show .
From the product of cut to breeding at multiplication stations and further processing in the nurseries . There are multiple processes prior to the end consumer buying daisy flowers in their local stores . But the process can be accelerate by replacing chemical plant increase regulators ( PGRs ) with light-emitting diode lighting . The profligate output time in the nursery free space for more plant life to sell to the memory ’ procural squad .
discipline result : truehearted yield times with no utilization of chemistryResults from the study with light-emitting diode luminosity as a replacement for PGRs are convincing , but also surprising . In addition to greener foliage and more consistent plant , production times were optimized from a normal pace of 4 - 6 workweek from reefer to onward sales agreement for transplanting to 3 - 5 calendar week . The faster production time means that you could utilize the same square cadence for more yield repetitions , which thereby create a potential drop for an increase in sales event .
" I was surprised that we were able to produce a shorter and more sellable plant with no use of PGRs only using light-emitting diode grow light , " suppose Jesper Slot , former possessor in the nursery where Senmatic carried out the cogitation and current CEO of Graff Young Plants .
" In plus to producing more vernal plants by square m and from it increasing our sale , we were also able-bodied to accommodate the increasing interest and need for young plant produced with no use of PGRs . Using only lead lighting , we had a product that could be push as gratis of pesticides with exception of control of fungous spore . Reducing the use of chemic curative is a supply chain liability and something the entire chain from extension stations to procurement should seek to improve , " order Jesper SlotCEO of Graff Young Plants
The summate note value factors should of course also be include when calculating the collected cost of investing in changing from traditional HPS lighting to modern LED grow lights : " You have to look beyond savings relating to electricity price when invest in LED . Our client experience less loss , less slowing , and more undifferentiated plant . agent that all ensue in optimizing employment procedure in the glasshouse . It is important to calculate the collected monetary value decrease , " say Morten KrageKey Account Manager at SenmaticLED in replacing of chemical PGRsThe idea of using LED lighting in replacement of chemical PGRs began to grow in Jesper Slot after having been in contact with Senmatic , where he get wind instrument of the convincing impact LED has on plant growth and growth regulation . In coaction , a survey on the gist on Osteospermum was carried out in the nursery , which Jesper Slot co - owned .
In a minor test compartment of the nursery , which produce million of Osteospermum to be sell throughout Europe , four change of Osteospermum were place under light-emitting diode grow lights in the industrial plant ’s 8th calendar week from 05.00 to 21.00 at a temperature of 16 degrees Celsius . To compare ontogeny results , all four varieties had address plants , which were growth regulated traditionally by using PGRs .
During the study , unlike light combination were test . Research has shown that red light stimulates rooting , and thereby “ stretch along ” the plant , while grim luminousness “ wrench ” and thereby impacts the tallness of the plants . The use of grow lights in agriculture and horticulture has been thoroughly examined . Research has find that blue lite result in compendious growth , while red-faced faint impact stretching . This might , however , vary base on culture – in some plants , the exact opposite might be the case . For representative , it is just the polar in tulips , tells Morten Krage , while Jesper Slot hold :
It is a well - known fact in the horticultural manufacture that the color of LED can affect plant growth , but there are still some unrequited enquiry , and not all plants have been analyse . That is why Senmatic decided to examine Osteospermum , which they produced for the European market .
With the Sunny Osteospermum variety Emma repeated trial of plant under different run light combination and reference plants address with PGRs under traditional HPS - light were carried out . The photo below shows the different between the reference plant life do by with PGRs and HPS - lighting ( to the left hand ) and a plant govern only by using head - lighting ( to the right wing ) .
Example of the written report ’s findings – cheery Osteospermum Emma : The tables below show the test results for the Sunny Osteospermum variety Emma . The three table show how the light combination have touch the flora . Note that the only change in growth ordinance are the combinations of light-emitting diode - ignition – controlling clean combinations is well manage usingSenmatic ’s light-emitting diode controlleror theirclimate control condition . The credit plants have all been treat with PGRs six fourth dimension and have been target under traditional HPS - lighting . It is worth notice that even with a non - governable , permanent LED light plan , remarkable results were have .
" It is idea - agitating that it is possible to altogether remove chemical PGRs during formation just by using LED , " says Jesper Slot .
In addition to studies on the Emma variety , similar study have been carry out for the Sunny variety Atilla , Galina , and Carlos .
Click here for the results
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