Maize Root Chemicals Boost Wheat Yields, Opens Doors to Sustainable Cultivation

Researchers from the University of Bern have discovered that certain chemicals secreted by maize roots, specifically benzoxazinoids, have the potential to increase wheat yields by over 4% when wheat is planted after maize in the same soil. These naturally-occurring chemicals alter the soil’s microbiome, influencing the growth of subsequent crops. Through extensive field experiments, the researchers found that the release of benzoxazinoids not only improved wheat germination and growth but also led to a decrease in pest infestation. This notable increase in yield holds promise for enhancing agricultural productivity without relying on additional fertilizers or pesticides. However, these effects can vary based on soil properties and its microbial composition, emphasizing the importance of understanding soil dynamics. The study further confirmed that the enhanced yield did not compromise the quality of wheat grains. Future research will delve deeper into understanding the direct and indirect effects of benzoxazinoids on wheat growth and yield through soil microorganisms.