Quantitative genetic analysis reveals potential to breed for improved white clover growth in symbiosis with nitrogen-fixing bacteria.

White clover () is integral to mixed pastures in New Zealand and temperate agriculture globally. It provides quality feed and a sustainable source of plant-available nitrogen (N) N-fixation through symbiosis with soil-dwelling bacteria. Improvement of N-fixation in white clover is a route to enhancing sustainability of temperate pasture production.