Hexaploid bread wheat is generally more salt tolerant than its tetraploid progenitor. However, the physiological bases and the relative contributions of immediate effects of polyploidization and subsequently acquired adaptive changes in the salt tolerance of hexaploid wheat remained elusive. This study compared a large suite of morphophysiological traits in synthetic and natural hexaploid wheats, and their tetraploid and diploid progenitors, under normal and salt-stressed conditions, and studied subgenome-specific expression of a critical salt-tolerance gene, HKT1;5.

Future food production is highly vulnerable to both climate change and air pollution with implications for global food security. Climate change adaptation and ozone regulation have been identified as important strategies to safeguard food production5,6, but little is known about how climate and ozone pollution interact to affect agriculture, nor the relative e

The world faces a small but substantially increased risk over the next two decades of a major slowdown in the growth of global crop yields because of climate change, finds this new research by Stanford professor David Lobell and Claudia Tebaldi from the National Center for Atmospheric Research