plant lighting Articles

  • TrueNDVI vs. Synthetic NDVI Explained

    Not all NDVI is created equal Normalized difference vegetation index (NDVI) imagery products have become increasingly common in precision agriculture applications. More companies are offering NDVI and NDVI-like products, including “Synthetic NDVI” images from drone platforms. At Sentera, it is our mission to provide you only the most valuable crop health data, which ...


    By Sentera, LLC

  • New and old soybean cultivar responses to plant density and intercepted light

    Genetic gain for new soybean [Glycine max (L.) Merr.] cultivars is substantial, and research suggests this is partially explained by greater tolerance to increased plant densities. We conducted an experiment to determine if greater tolerance to increased plant density and more efficient use of cumulative intercepted photosynthetically active radiation (CIPAR) partially explained the yield ...

  • Shedding Light on Land Tenure in Africa

    Land and natural resources lie at the heart of social, political, and economic life in much of rural Africa. They represent fundamental assets—primary sources of livelihood, nutrition, income, wealth, and employment for African communities—and are a basis for security, status, social identity, and political relations. For many rural people, land and resources such as water, trees, and ...

  • Cold light shines on Paris climate pledges

    The world’s leading economies are heading in the right direction on tackling climate change, but some still have a long way to go to make their undertakings politically credible, according to a UK research centre. With the Paris Agreement barely two months old, the world now moves from talk to action − or at least that’s the ...


    By GLOBE Foundation

  • Light and moisture competition effects on biomass of red clover underseeded to winter wheat

    Red clover (Trifolium pratense L.) use as an underseeded cover crop in winter cereals has declined due to inability of growers to consistently establish uniform stands. The objective of this study was to assess the effect of light and soil moisture competition on underseeded red clover establishment and end of season dry matter production. Field trials were conducted at multiple locations in 2005 ...

  • VeggieFresh LED grow lights help commercial growers increase revenue by 35%

    After 2 years of research, development, and testing, VeggieFresh LED announces arrival of their new line of commercial LED grow lights through VeggieFreshLED.com. Known for bringing innovative products to the commercial greenhouse marketplace, VeggieFresh is positioned to permanently alter how produce is grown on a large scale by showing grow operation ...


    By Veggie Fresh LED

  • Simple models for carbon assimilation by plants

    The detailed processes in photosynthesis are complicated and hard to model. In many cases, however, it’s possible to simplify the model by focusing on one or more of the limitations to assimilation. Carbon Assimilation Simplified: Light and WaterIn simplest terms, carbon assimilation involves the chemical transformation of carbon dioxide and water to carbohydrate and oxygen within the leaves of ...


    By Decagon Devices, Inc.

  • LED Grow Lights Case Study – Cajun Belle Peppers

    Grow Journal Of Cajun Belle Peppers Under LED Grow Lights This cajun belle pepper grow journal uses our VF150 150 watt led grow light. The grow space is 2×3 ft although this single pepper plant takes up about 18×30 inches. It was started from transplant on 5/28/13. The ...


    By Veggie Fresh LED

  • New documentary shines a light on solutions to global species loss

    A paper published last week in the journal Science Advances claims the sixth major mass extinction is already underway ­— and this time humans are to blame. “We can confidently conclude that modern extinction rates are exceptionally high, that they are increasing, and that they suggest a mass ...


    By Ensia

  • Corn morphology, mass, and grain yield as affected by early-season red: far-red light environments

    The spatial arrangement among plants affects both vegetative and reproductive meristem development. More axillary meristems develop at lower plant densities, which are associated with relatively high red:far-red light ratios (R:FRs; 645:735 nm). However, little is known about the effect of R:FR on corn (Zea mays L.) productivity. We conducted field research to determine the effect of early-season ...

  • Morphological, anatomical, and physiological changes of orchardgrass leaves grown under fluctuating light regimes

    The physiological and anatomical adaptability of pastures growing under trees in silvopastoral systems can alter the efficiency of conversion of energy to dry matter (DM). This study was conducted to determine the effects of different fluctuating light regimes (from 24 to 100% transmissivity) on leaf physiology, morphology, anatomy, and structure of orchardgrass (Dactylis glomerata L.) in a ...

  • Grana-localized Proteins, RIQ1 and RIQ2, Affect the Dynamics of Light-harvesting Complex II and Grana Stacking in Arabidopsis

    Grana are thylakoid structures that are observed in land plants and in which photosystem II (PSII) and light-harvesting complex II proteins (LHCIIs) accumulates. We isolated two Arabidopsis mutants, reduced induction of non-photochemical quenching (riq1 and riq2), in which stacking of grana was enhanced. The curvature thylakoid 1a (curt1a) mutant was previously shown to lack the grana structure. ...


    By H Smith Plastics LTD

  • Can LED Time Travel – How Vertical Farming And LED Grow Lights Can Pave The Way To Food Security

    LED and time travel, what does that mean? In the world of plant science, it translates to productivity and references LED Grow Light’s performance levels. These amazing lights manufactured by Veggie Fresh LED are made with tiny chips called LEDs (Light Emitting Diodes) and they grow plants indoors. Of course they don’t actually travel through ...


    By Veggie Fresh LED

  • Case study: fish processing plant wastewater treatment

    Abstract This presentation describes the full scale installation of a wastewater treatment system at the Ocean Gold Seafood ("OCS") plant in Westport, Washington, USA. Local Government requires that fish processors remove total suspended solids (TSS), fats, oil and grease (FOGs) and colloidal materials almost completely in order to allow for efficient disinfection. The OCS plant had only ...

  • VeggieFresh LED releases the TLM25 LED grow light for home growers and juice fast enthusiasts

    Gardeners and health enthusiasts can enjoy fresh organic juices all year round, made from produce grown indoors using newly released technology from VeggieFresh LED. From wheatgrass and spinach to grapes and bananas, anything that can grow outside will grow inside with LED Grow Lights. The team at VeggieFresh LED are focusing a considerable amount of research on juicing as both partners have used ...


    By Veggie Fresh LED

  • Measurement of photosynthetic performance in crop plants under South African climatic conditions

    A key objective of the research conducted by Dr Riekert van Heerden (riekert.vanheerden@nwu.ac.za) at North-West University, Potchefstroom, South Africa and Drs Kobie de Ronde (and team members) and Joseph Asiwe at the Agricultural Research Council (ARC–Vegetable and Ornamental Plant Institute & ARC–Grain Crop Institute) is to increase the production of crops important for the ...


    By PP Systems

  • Strategies to make use of plant sensors-based diagnostic information for nitrogen recommendations

    Improvements of nitrogen use efficiency (NUE) may be achieved through the use of sensing tools for N status determination. Leaf and canopy chlorophyll, as well as leaf polyphenolics concentrations, are characteristics strongly affected by N availability that are often used as a surrogate to direct plant N status estimation. Approaches with near-term operational sensors, handheld and ...

  • Nitrogen and plant growth regulator influence on ‘champion’ Bermudagrass putting green under reduced sunlight

    Managing warm-season turfgrasses with reduced sunlight is challenging due to C4 plant morphological limitations, such as reduced lateral stem growth. Adjusting cultural management practices, such as N and trinexapac-ethyl (TE) [4-(cyclopropyl-a-hydroxy-methylene)-3,5-dioxocyclohexanecarboxylic acid ethyl ester], application may benefit turfgrass performance when sunlight is reduced. Therefore, a ...

  • Stud case study

    A major vegetable grower in Lantokia, Fiji, using soilless culture systems began to trial Amnite A-100. His crops consisted principally of lettuce, tomatoes, capsicums, cucumbers, zucchinis and melons. Before the trials they had been plagued with root diseases, mosaic virus and insect attack, control of which required constant use of pesticides and ultraviolet lighting. The first trials commenced ...


    By Cleveland Biotech Ltd.

  • Measurement of Leaf/Canopy Level Reflectance with The UniSpec-SC

    The UniSpec-SC, commonly referred to as a “Reflectometer”, is a single channel, field portable instrument designed for measurement of leaf/canopy reflectance. It features an innovative user interface with integral computer and large, full color LCD, built-in light source and extensive range of accessories for measurement on individual leaves (including needles) and vegetation. It is a ...


    By PP Systems

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