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  • What do GMP and GACP Certifications Mean for the Cannabis Industry?

    What do GMP and GACP Certifications Mean for the Cannabis Industry?

    As the world is rapidly opening up to cannabis, growers interested in cultivating it can choose between the two markets to serve: recreational or medicinal. Recreational market caters to customers interested in consuming cannabis and its derivatives for relaxation, for pleasure, out of curiosity etc. Medicinal market, on the other …Read More »
  • Tips For Cloning the Cannabis Plant

    Tips For Cloning the Cannabis Plant

    Why to use cuttings instead of seeds? Cloning the Cannabis sativa plants means asexually reproducing identical copies of your cannabis mother plant. During the vegetative, long day growth (18h) you might notice that some of the plants grow faster than the others. Those that have well developed, dark green leaves, …Read More »
  • Increasing Lettuce Coloration with LEDs

    Increasing Lettuce Coloration with LEDs

    Using LED grow lights in plant production is a relatively new branch of science. In vertical farming where artificial light sources are used in closed environment it is important to collect data about the individual plant species to be able to produce the right spectrum and light intensity for vegetative …Read More »
  • How Do LED Grow Lights Work?

    How Do LED Grow Lights Work?

      What You Should Know About LED Grow Lights Energy-efficient LED grow lights are the lighting of the future of agriculture. They are not only economic in their use but they produce better plants as well, in comparison to all traditional lighting options. In the texts below you can read …Read More »
  • 8 Tips for Setting Up Successful Plant Trials with LED

    8 Tips for Setting Up Successful Plant Trials with LED

    LED grow lights provide an easy opportunity for growers and scientists to conduct plant trials with simple installations and a broad range of different spectra in multiple form factors. The following tips should encourage scientists and commercial growers who are currently not familiar with studies in horticultural lighting, to find …Read More »
  • Artificial Lighting In Agriculture

    Artificial Lighting In Agriculture

    For many years, it is known that plants require light for growth, but not until the last hundred years with the development of science and technology that the exact effect of light on plants is fully discovered. In agriculture, the use of artificial lighting seeks to provide a source of …Read More »
  • The Entire Cannabis Industry in One Room

    The Entire Cannabis Industry in One Room

    The Marijuana Business Conference and Expo brought 18.000 participants and more than 650 exhibitors to the Las Vegas Convention Center last week. The fifth rendition of this event proved to be the world’s largest gathering of the cannabis industry players, from seed to sale. For most exhibitors, this event is …Read More »
  • Light Approaches to Speed up the Generation Turnover

    Light Approaches to Speed up the Generation Turnover

    The development of new plant varieties with advanced performance or an improved environmental adaptation is important to secure our food. To obtain new genetic recombinants or to introduce one or multiple target genes, plants need to be pollinated in a controlled way and seeds must be collected – best as …Read More »
  • Light Planning: 3 Steps to Ensure Efficient Plant Growth with LEDs

    Light Planning: 3 Steps to Ensure Efficient Plant Growth with LEDs

    Acquiring LED grow lights is an investment that is bound to pay off over time due to the lights’ low energy consumption, low heat emission and light spectra optimized for efficient plant growth. However, the investment may prove to be wasteful if the crucial step of light planning is executed …Read More »
  • Why is LED Grow Light Purple?

    Why is LED Grow Light Purple?

    Sure, by now we are all aware that LED light does wonderful things for plant growth. Plants grow quicker and healthier than under other, traditional lighting methods such as HPS, and if the LEDs are good, then even better than under natural sunlight. But why are they always purple/pink? All …Read More »
  • Time Heals Everything – Even Faster with LED Light

    Time Heals Everything – Even Faster with LED Light

    It is common practice in plant cultivation to cut two plants in half and combine the root of one, with the top of the other. With this invasive procedure called grafting we wound two plants in order to make one, far stronger in every way than the original two. Through …Read More »
  • The Effect of LED Grow Lights on Human Health

    The Effect of LED Grow Lights on Human Health

    The rapid increase in the use of LED technology for horticultural lighting applications has also raised discussions regarding the potential human health risks compared to legacy lighting solutions. This is somewhat due to the differences in visual appearance (colour and intensities) of the light in such applications. At a high …Read More »
  • Aquaporins – The Guardians of Waterflow Through Membranes

    Aquaporins – The Guardians of Waterflow Through Membranes

    David Israel, a PhD. Student from the Univeristy of Helsinki, is studying the role of aquaporins in plant water relations through the hydraulic architecture and the control of water loss.  The aim of this experiment is to study water transport through the plant in general, but also the impact of …Read More »
  • How do you spell light?

    How do you spell light?

    Characterizing spectral properties and calculating irradiances are everyday tasks for many researchers in the field of plant photobiology. Varying waveband definitions in use, different photoreceptors found in plants, let alone the difference between expressing light on photon or energy basis can make one’s head spin. To tackle this, a couple …Read More »
  • Could one combine good plant growth light and at the same time prevent pest reproduction?

    Could one combine good plant growth light and at the same time prevent pest reproduction?

    Plant growth and morphology can be modified with light quality, but could plant pests be affected too? For example narrow bandwidth UV-B light can be used directly and efficiently against the growth of powdery mildew fungi, as thorough investigations in a collaborative project by Cornell researchers and colleagues in Norway …Read More »
  • Studies related to plant secondary chemistry and plant-to-plant communication

    Studies related to plant secondary chemistry and plant-to-plant communication

    Jarmo Holopainen, Professor of Applied Ecology from the University of Eastern Finland, Department of Environmental Science and his research group are doing multifaceted biological and ecological research. The research is related to biological and ecological effects of global change, plant-herbivore interactions, secondary chemistry of plants, biogenic volatile organic compounds and …Read More »
  • Greetings from sunny Tucson and sunny Freising!

    Greetings from sunny Tucson and sunny Freising!

    During the past two weeks I’ve enjoyed full sunshine, though accompanied by a bit different temperatures, in two continents. First I attended to the LED symposium at the The University of Arizona – CEAC in Tucson (US). All the latest results and ideas presented are available as pdf-files through the …Read More »
  • Berry callus cultures – Mass pigments, lipid composition, total phenolic concentration and anthocyanins

    Berry callus cultures – Mass pigments, lipid composition, total phenolic concentration and anthocyanins

    Continuation on the blog post “The more the berrier” (8 Nov 2013), find now more about the varying effects of different wavebands on the properties of berry callus cultures from the MSc thesis written by Olli Åman “The effect of different light spectra on berry callus pigment accumulation, lipid composition …Read More »
  • Rooting cloudberries, saskatoons and plums

    Rooting cloudberries, saskatoons and plums

    Researchers at the Agrifood Research Finland MTT have done a set of interesting rooting experiments with different growth substrates and varying light conditions. Plum variety “Sinikka”, cloudberry “Nyby” and saskatoon “Martin” were rooted either on peat or sphagnum moss based substrates. Valoya AP67, traditional red&blue LEDs and high pressure sodium …Read More »
  • From ozone depletion to re-defining PAR and to climate change

    From ozone depletion to re-defining PAR and to climate change

    Stemming from my background in studies concerning plant responses to UV radiation, I wanted to highlight the news about the recovery of the ozone layer. Please take a look at the article After 30 years of protecting the ozone layer, some reasons to be cheerful, written by Nigel Paul, Professor of …Read More »
  • On the same wavelength

    On the same wavelength

    Docent Matthew Robson and his research group (Canopy Spectral Ecology and Ecophysiology, CanSEE) are continuing with their work presented in this blog last year (see post “At the crossroads”). Current experiments in a growth room, exploring the mechanisms of response to canopy shade during spring and summer, focus on plants’ …Read More »
  • Insight on science in Finland on Projects Magazine – Sensory photobiology and ecophysiology of plants

    Insight on science in Finland on Projects Magazine – Sensory photobiology and ecophysiology of plants

    SenPEP is a research group led by Dr. Pedro J. Aphalo. Based at the University of Helsinki, the group’s field of research is sensory photobiology and ecophysiology of plants. In more detail, the group studies e.g. the modulation of the light sensitivity of stomata by other environmental factors, effects of …Read More »
  • With flying colors

    With flying colors

    Plant growth and morphology can be manipulated with light, that’s no news. But what actually happens to tomato seedlings under varying light quality, e.g. to the transpiration rate and how this then affects plant growth and drought stress tolerance? Valoya lights with different spectral qualities were used in an experiment, …Read More »
  • Collaborative project VeksthusDynamikk

    Collaborative project VeksthusDynamikk

    An energy dynamic Norwegian greenhouse industry project VeksthusDynamikk is tackling energy savings possibilities with a broad perspective. International group of researchers and industrial partners investigate possibilites for saving energy through dynamic temperature management and removing excess humidity by condensation. Another important prospect is usage of LED lights, besides from the …Read More »
  • Eppur Si Muove – And Yet It Moves!

    Eppur Si Muove – And Yet It Moves!

    Intermittent light is an interesting concept, as it provides opportunity to save in lighting electricity costs. This approach was taken in the Regen-Forest project. Aim of this project was to develop, construct and introduce a new LED-based technology, able to promote production of forest tree seedlings in a cost efficient …Read More »