Scientists urge rethinking the role of field trials in agricultural research

A new article published in Nature Plants calls for a reassessment of how genetic technologies for agriculture are evaluated. The international team of authors argues that laboratory-based experiments and greenhouse studies are too often used as substitutes for field trials, despite failing to replicate real growing conditions. This gap between scientific findings and practical improvements in crop yields, they warn, undermines the translation of innovation into actual farm performance.

The researchers note that tests carried out on outdated, non-elite plant lines under artificial light, controlled temperatures, and unrealistic planting densities rarely provide an accurate measure of a crop’s performance in farmers’ fields. This mismatch weakens collaboration between fundamental plant science and breeders, who require solutions validated under real agricultural conditions — especially in the face of accelerating climate pressures.

The authors also highlight that academic priorities tend to favor “hot” research topics over pressing agronomic needs. As a result, innovation adoption slows, limiting global productivity gains and increasing risks to food security.

To bridge this gap, the scientists advocate for deeper partnerships with organizations experienced in large-scale field trials. They stress that only systematic evaluation in the field can ensure that promising genetic advances move beyond laboratories and greenhouses to deliver tangible yield benefits across global cropping systems.