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Articles sur Photosynthesis

Affichage de 41 à 60 de 73 articles

Genetically engineered tobacco plants growing in a greenhouse. Paul South

Helping plants remove natural toxins could boost crop yields by 47 percent

As the climate changes and the population grows, meeting the demand for food will become more difficult as arable land declines. But an international team of scientists has figured out an innovative solution to dramatically bumping up crop yields.
Long’s Peak framed by rock outcrop, Rocky Mountain National Park, Colorado. Roy Luck

Nitrogen from rock could fuel more plant growth around the world – but not enough to prevent climate change

Scientists have long thought most nitrogen in Earth’s ecosystems comes from the air, but new research shows it also is released as rocks weather. This could boost plant growth and help sequester carbon – but not fast enough to avert climate change, as some pundits have claimed.
The leaves of most plants are green because the leaves are full of green chemicals. Marcella Cheng/The Conversation

Curious Kids: Why are leaves green?

This is an article from Curious Kids, a series for children. The Conversation is asking kids to send in questions they’d like an expert to answer. All questions are welcome – serious, weird or wacky! Why…
Once the coat around the seed is moistened, the embryo cells expand and burst out in a process called germination. shutterstock/NUM LPPHOTO

Curious Kids: how can a tiny seed actually grow into a huge tree?

A seed contains nearly everything a tree needs to get growing. Just add a dash of water, a bit of warmth and the right location, and you’ll be seeing green in no time.
Cassava makes up nearly 50 percent of the diet in parts of sub-Saharan Africa, where populations are projected to increase by more than 120 percent in the next 30 years. CIAT International Center for Tropical Agriculture

Research shows how to grow more cassava, one of the world’s key food crops

Cassava is a key food source in tropical countries, but yields have been flat for decades. New genetic research is identifying many options for boosting production of this valuable staple crop.
Photosynthesis is crucial to the ability of plants to convert sunlight into energy. N i c o l a/Flickr

PM’s Prize for Science for revealing nature’s solar power

Distinguished Professor Graham Farquhar has received this year’s Prime Minister’s Prize for Science for his pioneering research into photosynthesis.
Packing heat: concentrating sunlight into a reactor to split H2O and CO2 – a step toward making liquid fuels. Courtesy of Professor David Hahn, University of Florida

Solar fuels: how planes and cars could be powered by the sun

Rooftop solar power is exploding in the US but some scientists are pursuing a radically different route in renewable energy: storing solar energy as a liquid fuel.
Blooming marvellous: cacti are among the few plant species that can thrive in the desert. Alan Levine/Flickr

Why are cacti so juicy? The secret strategy of succulents

Photosynthesis can be costly - but plants in hot and dry environments have evolved two special strategies for storing carbon dioxide, that could be used to protect crops against climate change.
Plants use photosynthesis to build molecules and energy they can use. By copying plants, humans can make cleaner fuels. Ranjit Bhatnagar/Flickr

To shift away from fossil fuels, we need to copy plants

Most of the energy that fuels our lives comes from plants. Whether it is a fossil fuel that was formed hundreds of millions of years ago or the food we eat, all carbon-borne energy has its ultimate origins…
Enjoy the color while you can before climate change makes a mess of this too. chensiyuan

Fall foliage in the crosshairs of climate change

One of nature’s most spectacular events occurs every autumn, when the leaves of hardwood trees burst into brilliant color before falling to the ground. These autumnal displays in the eastern United States…

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