photosynthesis measurement News

  • Latest FastOcean Sensor used at photosynthesis algorithm evaluation workshop

    Dr Kevin Oxborough participated in a workshop at the NIOZ labs in Yerseke, The Netherlands. The aim of the workshop was to validate a recently published algorithm (Oxborough et al. 2012, Limnology and Oceanography: Methods) that permits accurate estimates of the concentration of PSII reaction centres from active fluorometers. ...


    By Chelsea Technologies Group

  • LI-COR Upgrades Photosynthesis Platform With New LI-6400XT

    Lincoln, Nebraska: LI-COR Biosciences introduces the new LI-6400XT Portable Photosynthesis System with faster processor, support for flash memory, and Ethernet connectivity. The LI-6400 platform is a proven performer and the most cited photosynthesis instrument in scientific literature. The LI-6400 XT upgrade offers researchers additional flexibility for handling data and an upgrade path for ...


    By LI-COR

  • New insights into plant uptake of carbonyl sulfide aid global carbon cycle model

    In a study published in Science on 14 November, NOAA and CIRES scientists and colleagues show that carbonyl sulfide (COS), a trace gas consumed by plants, provides quantitative evidence that gradients of COS during the growing season are controlled by plant uptake during photosynthesis. This in turn provides an independent measure of plant photosynthesis rates crucial for carbon cycle modeling, a ...

  • Common Pesticide Reduces Food Value of Algae

    SILVER SPRING, Maryland (ENS) - Researchers with the NOAA National Centers for Coastal Ocean Science have identified negative effects of the commonly used herbicide atrazine on phytoplankton, the free-floating algae that form the base of the food chain for aquatic animals. Published in the current issue of the journal 'Pesticide-Biochemistry and Physiology,' the study indicates protein levels ...

  • Combatting diseases in the greenhouse before they become visible

    A camera that maps photosynthesis, a DNA test that can measure the slightest traces of pathogens, or a precision spray system that only affects the plant and not the surrounding air… The Gezonde Kas (‘healthy greenhouse’) project has, over the last four years, allowed for the development of a sophisticated system of monitoring and disease control. It is now ready for practical ...

  • Scientists find ozone levels already affecting soybean yields

    Current atmospheric ozone levels are already suppressing soybean yields, according to Agricultural Research Service (ARS) scientists and university cooperators studying the effect of global climate change on crops. ARS plant physiologists Don Ort and Carl Bernacchi, molecular biologist Lisa Ainsworth and geneticist Randall Nelson have been working with University of Illinois scientists on a ...

  • Model predicts shifts in carbon absorption by forest canopies

    An Agricultural Research Service (ARS) scientist participated in a project to fine-tune computer models that can indicate when forest 'carbon sinks' become net carbon generators instead. The results will help pinpoint the effectiveness of trees in offsetting carbon releases that contribute to higher atmospheric temperatures and global climate change. ARS plant physiologist ...

  • Climate change to disrupt soil nutrients in drylands

    The increased aridity expected this century as a result of climate change may disrupt the balance of key soil nutrients with a knock-on effect on soil fertility threatening livelihoods of more than two billion people, a study finds. The drop in nitrogen and carbon concentrations that occurs as soils become dryer could have ...


    By SciDev.Net

  • IDCs: innovation engine for horticulture

    “We want to show innovations in intensive horticulture and demonstrate how they can be applied in practice. This is the main goal of the Innovation and Demonstration Centres (IDCs) in the Netherlands,” says Sjaak Bakker of Wageningen UR Greenhouse Horticulture. There are currently seven operational IDCs, namely in the field of water , flavour, energy, LED lighting, bulbs and plants, ...

  • ESA investigates new methods of mapping tropical forest from space

    Tropical rainforests play a crucial role in Earth's carbon cycle by absorbing carbon from the atmosphere and storing it in biomass. However, mapping these carbon stocks from space poses a huge technical challenge. An airborne campaign, being carried out in South America, is showing how spaceborne radar could be an answer. In order to improve our understanding of the carbon cycle, more accurate ...


    By European Space Agency (ESA)

  • Purfresh Expands Solar Crop Protectant Product Line with Purshade Ultra

    Purfresh, a leading provider of clean technologies that purify, protect, and preserve the global food supply chain, today introduced Purshade® Ultra, a next-generation solar stress protectant scientifically engineered to provide advanced ultraviolet (UV) protection for crops. Purshade Ultra, formulated with premium materials and advanced chemistry, is the latest member of the Purshade family of ...


  • Australia Invites Nations to Monitor Forests for Climate`s Sake

    SYDNEY, Australia, July 23, 2007 (ENS) - Australia will establish a new global system to monitor changes in forest cover and forest carbon levels as part of its A$200 million Global Initiative on Forests and Climate, government officials announced today. Minister for Foreign Affairs Alexander Downer, and Environment and Water Resources Minister Malcolm Turnbull introduced the initiative at a ...

  • Q&A: A plant lab in the palm of your hand

    PhotosynQ, a project based at the University of Michigan in the United States, aims to help plant scientists around the world gather data through a cheap hand-held device called MultispeQ for scanning plant material.  By connecting the device to a smartphone, researchers can use it to collect information about how efficiently a plant photosynthesises, for example, as well ...


    By SciDev.Net

  • The 2012 LIFE+ projects

    Austria 4 projects (14.5 million) LIFE+ Environment Policy and Governance (1 project – 3.6 million) LIFE-URBANLAKE (Stadt Wien – Magistratsabteilung 45 – Wiener Gewässer): This project intends to define strategies to reduce the vulnerability of the “Alte Donau” from effects of climate ...

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