The top leaves of crops absorb far more light than they can use, starving lower leaves of light. Scientists designed plants with light green leaves with hopes of allowing more light to penetrate the crop canopy and increase overall light use efficiency and yield. This strategy was tested in a recent modeling study that found leaves with reduced chlorophyll content do not actually improve canopy-level photosynthesis, but instead, conserve a significant amount of nitrogen that the plant might be able to reinvest to improve light use efficiency and increase yield.  

New research demonstrates that seagrass meadows are important fishing grounds all around the globe. The work highlights that there is an urgent need to start appreciating and understanding this role to be able to build more sustainable fisheries. A study led by Dr Lina Mtwana Nordlund at Stockholm University, published in the scientific journal Fish & Fisheries, examines the global extent to which these underwater meadows support fishing activity.

As invasive and indigenous insect pests continue to wreak havoc on crops across Africa, a Virginia Tech-led project is intensifying its work to coordinate a response that looks beyond geographic and financial barriers.

Stopping crop losses requires working across borders, said Muni Muniappan, director of the Virginia Tech-led Feed the Future Innovation Lab for Integrated Pest Management. “Fighting these pests in just a few of these countries is futile, because it will continue to thrive in the countries where we are not working,” he said.

Humans may be adding large amounts of carbon dioxide to the atmosphere by using groundwater faster than it is replenished, according to new research. This process, known as groundwater depletion, releases a significant amount of carbon dioxide into the atmosphere that has until now been overlooked by scientists in calculating carbon sources, according to the new study.

A genomic study of Puerto Rico's Africanized honey bees – which are more docile than other so-called “killer bees” – reveals that they retain most of the genetic traits of their African honey bee ancestors, but that a few regions of their DNA have become more like those of European honey bees. According to the researchers, these changes likely contributed to the bees' rapid evolution toward gentleness in Puerto Rico, a change that occurred within 30 years.

A global conversion to organic farming can contribute to a profoundly sustainable food system, provided that it is combined with further measures, specifically with a one-third reduction of animal-based products in the human diet, less concentrated feed and less food waste. At the same time, this type of food system has extremely positive ecological effects, i.e. considerable reduction of fertilizers and pesticides, and reduced greenhouse gas emissions – and does not lead to increased land use, despite lower agricultural yields. These are the findings of a new study, which included the Vienna-based Department of Social Ecology among its contributors. Results have recently been published in “Nature Communications”.   

Corrals are used on livestock farms around the world to round up the animals when they need to be weighed or vaccinated. New research now shows that removing splashes of colors, shadows or water puddles from corrals, keeping noise levels down and not using dogs and electric prods can dramatically reduce the stress cattle experience. Maria Lúcia Pereira Lima of the Instituto de Zootecnia Sertãozinho in Brazil is the lead author of this study in Springer’s journal Tropical Animal Health and Production.

Two crops or one? Sometimes, growing two crops simultaneously on the same piece of land – called intercropping – can benefit farmers. But it needs careful planning and resource management.

You may not find them in the produce aisle yet, but it’s only a matter of time before new disease-resistant apple cultivars overtake favorites like Honeycrisp in popularity, according to a University of Illinois apple expert.

In 1977, during the heyday of the emerging “alternative energy” movement, I attended a solar greenhouse conference where I remember one of our little tribe’s pioneers opined about how much less exciting the solar “revolution” was going to be when it finally went mainstream. “I know what’s going to happen,” architect Steve Baer of Zomeworks pronounced – “solar collectors are going to be advertised in Sears newspaper inserts! I’m going to hate it but I’ll know we have arrived.”