plant lighting Articles
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LED lighting industry chain links to accelerate the rush into the plant lighting market?
In 2021, among the many segments of LED lighting, LED grow light has become one of the most vociferous areas.Driven by the continuous high demand, LED lighting industry chain links to accelerate the rush into the plant lighting market, aimed at catching up with the dividends brought by the rapid development of the market.Chips:HC SEMITEK: has mature plant lighting chip solutionsFOCUS LIGHTINGS: ...
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Led grow light bar
1. Urban Vertical Agriculture - Horticulture LED Production Module grow 2. High PPFD, One Bar equivalent to 3 T8 Tube, Build your plant farm with fewer lights! 3. Different LED chips in one lens, Spectral radiation uniform, Lens + Reflector cup, Concentrating radiation, Energy saving 50%,Beam angle 60 ° 4. Ultra-thin 21mm,multi-shelf lighting plant growth lights 5. Silicone potting waterproof ...
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Exergy analyses of the biochemical processes of photosynthesis
This paper gives the exergy analyses of the main biochemical processes of photosynthesis in green plants. In the light reactions, photosystem I, photosystem II, and ATP-synthesis are found to operate at exergy efficiencies of 50%, 68% and 81%, respectively, so that 48% of the exergy of directly utilised solar photons is converted to biochemical energy carriers. Subsequently, in the dark ...
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Arrowleaf, crimson, rose, and subterranean clover growth with and without defoliation in the southeastern united states
Understanding the growth pattern of cool-season annual clovers is necessary to develop management practices that maximize forage production and identify compatible grass associations and farming systems. Plant density, light interception, shoot yield, and root yield of arrowleaf (Trifolium vesiculosum Savi.), crimson (T. incarnatum L.), rose (T. hirtum All.), and subterranean (T. subterraneum L.) ...
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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 ...
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Lighting Strategies for Ornamental Crop Production
The ornamental horticultural industry is diverse and made up of flowering potted plants, cut flowers and bedding plants. Ornamentals have specific lighting requirements needed to grow high quality and consistent crops. Since many bedding plant varieties are started in winter, lighting becomes important for managing early growth stages and to ensure products are in a condition ready to be shipped ...
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The future of lighting by focusing on DLI and PSS value
To what extent can a grower produce efficiently more? By measuring several aspects on a daily basis and making adjustments when necessary. The knowledge among both growers and researchers is growing, and with it, the certainty and the quality of the harvest are increasing. Think of recent developments such as lighting according to the DLI (Daily Light Integral) concept instead of the classic ...
By Oreon
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UbiBot SP1 For Greenhouse Light Regulation
To grow plant plants in greenhouses, you need light. The amount of light a plant receives determines the length of time a plan remains active and its rate of growth. The most basic metabolic process of the plant is photosynthesis, and photosynthesis requires light energy. Three Aspects of Light Effect There are three aspects of light that should be considered when determining the effect that ...
By UbiBot
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What is the right light intensity and illumination length?
Photoperiodism The photoperiod, this is used as a signal for the plant to flower. Many flowering plants (angiosperms) use a photoreceptor protein, such as phytochromeor cryptochrome, to sense seasonal changes in night length, The Phytochrome conversion (Pfr to Pr) allows the plant to sense when it is night or day. Phytochrome Conversion The biologically-inactive form of ...
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Influence of environment on plants
There is no denying the importance of light for the growth of plants; however, there are many other environmental factors—such as temperature, moisture and nutrient availability, and soil type–that also influence plant growth. These factors do not act in isolation and are, many times, correlated. So, it is interesting to see how light works in combination with other resources to ...
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Getting Kids Excited About Plant Science
It can be hard to grab a 7th-grader’s attention, especially if you happen to be a plant: on the leafy green surface, it looks like nothing is going on at all. But with the CI-340 Handheld Photosynthesis System in hand, young STEM (Science-Technology-Engineering-Mathematics) students were able to learn about the world of invisible activity occurring in the plants and soil all around them. ...
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Plant carbohydrates: forming the basis of plant life
Carbohydrates are the basic building blocks of plant life and play an important role in plant growth, development and reproduction. They are a source of energy for plants and an important part of their structure. Types of plant carbohydrates Plant carbohydrates can be divided into two main categories: structural carbohydrates and non-structural carbohydrates. l Structural carbohydrates are ...
By CD BioGlyco.
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Photosynthetically active radiation sensor and illuminance sensor
Summary: In the study of plant physiology, the determination of plant photosynthesis is one of the important research work. It is generally measured by measuring the value of illuminance and photosynthetically active radiation, and the measurement of illuminance and photosynthetically active radiation requires a light sensor and photosynthetically active radiation sensor.To understand the ...
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Corn response to competition: growth alteration vs. yield limiting factors
Competition mechanisms among adjacent plants are not well understood. This study compared corn growth and yield responses to water, N, and shade at 74,500 plants ha–1 (1x) with responses to water and N when planted at 149,000 plant ha–1. Plant biomass, leaf area, chlorophyll content, reflectance, and enzyme expression (transcriptome analysis) were measured at V-12. Grain and stover yields were ...
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Water, why should I pay to fix it?
Water is the essential nutrient for greenhouses, plants, vegetables, fruit, flowers and all living things. However, it is always the last nutrient farmers want to spend money on to accomplish all its benefits. Simple things like bacteria, electrical conductivity, iron, manganese, sulphates, algae, and funguses must be monitored and addressed. If you are not fixing your water, you are leaving a ...
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Physiological Injury and Bio-mechanical Injury of Aquatic Plants
Physiological Injury of Aquatic Plants 1. Insufficient Light During the growth, due to insufficient light, the photosynthetic intensity of aquatic plants will be reduced, the normal growth and development will also be affected. For example, red water plants such as Ammania gracilis and Rotala macranda, due to insufficient light, the anthocyanins in the leaves will decrease; while ...
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Light Uniformity - Comparing LED and HPS Luminaires
Light uniformity is an important factor when it comes to growing a consistent crop and optimizing your growing environment, however, there has been some misinformation about the way HID and LED luminaires distribute light and affect plant health. As a manufacturer of both HID and LED technology, P.L. Light Systems always strives to show the complete picture of both technologies. We think both ...
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Light Spectras and Absorption Curves for horticulture
When we talk about plants and their interaction with light, we mostly talk about photosynthesis. But this is only a small part of the story, there are numerous other mechanisms controlled by light. This article aims to help understanding the different mechanisms. Due to the complexity, we just give an overview of the interaction of absorption spectra. It is important to ...
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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 and generative growth. Light spectrums can also be used to manipulate the plants growth cycle ...
By Valoya Oy
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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 ...
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