Over the past few decades, it has become obvious that climate change, and consequent extreme weather events, can wreak havoc on crop yields. Concerningly, there is a large disparity in agricultural vulnerability between developed and developing countries. In a new study, researchers have looked at major food grains in India to understand the long- and short-term effects of climate change on crop yields.
Researchers have reconstructed the evolutionary history of a highly specific olfactory receptor in the Egyptian cotton leafworm, a crop pest. This receptor plays an essential role in moth reproduction because it allows males to recognise the female sex pheromone. The scientists determined that the receptor appeared around 7 million years ago and that eight amino acids underlie receptor-pheromone binding. Their findings can guide the development of biocontrol strategies directed against this pest.
Botanists and paleontologists have identified a fossil chili pepper that may rewrite the geography and evolutionary timeline of the tomato plant family.
Anthropogenic climate change has, together with the intensive use and destruction of natural ecosystems through agriculture, fishing and industry, sparked an unprecedented loss of biodiversity that continues to worsen. In this regard, the climate crisis and biodiversity crisis are often viewed as two separate catastrophes. An international team of researchers calls for adopting a new perspective. In their review study they recommend (in addition to complying with the 1.5-degree target) protecting and restoring at least 30 percent of all land, freshwater and marine zones, establishing a network of interconnected protected areas, and promoting interdisciplinary collaboration between political institutions, which often operate independently.
A four-year field experiment conducted on the shores of restored Lake Mustijärv in Viljandi, Estonia, has revealed that recycling phosphorus-rich lake sediments back to agriculture could have positive impacts on crop production.
Researchers have developed an electronic patch that can be applied to the leaves of plants to monitor crops for different pathogens – such as viral and fungal infections – and stresses such as drought or salinity. In testing, the researchers found the patch was able to detect a viral infection in tomatoes more than a week before growers would be able to detect any visible symptoms of disease.
The impact of the fall armyworm pest on maize crops and communities in Sub-Saharan Africa were worsened by the COVID-19 pandemic, according to paper. Drawing upon recent empirical literature on the pest since it was first reported in Africa in 2016, scientists from Nairobi, Kenya, highlighted how it was responsible for up to 58% of maize losses worth up to US $9.4 billion.
A study of Britain’s native flowering plants has led to new insights into the mysterious process that allows wild plants to breed across species – one of plants’ most powerful evolutionary forces.
The genus Endiandra of the Lauraceae family has approximately 100 species and its diversity is strongly centered in south-eastern Malaysia and Australia. In China, there are only three recognized Endiandra species (two endemic) and they are distributed in Yunnan, Guangxi, Hainan and Taiwan.
A research group characterizes a new transcription factor that regulates, during the ripening of strawberries, the production of anthocyanins responsible for giving them their red hue.
