yield-potential
Yield potential refers to the maximum crop output achievable under ideal growing conditions with no limiting stresses, representing the theoretical ceiling for a plant's productivity. Understanding and closing the gap between yield potential and actual farm yields is a central challenge in plant science, as it guides breeding efforts, agronomic practices, and biotechnological strategies aimed at feeding a growing global population. Researchers study the genetic, physiological, and environmental factors that set yield potential limits, including canopy photosynthesis efficiency, resource partitioning, and grain-filling dynamics.
open_in_new WikipediaPubMed · 2026-04-29
Scientists identified five key genetic regions in wheat that reliably control flag leaf size across multiple environments, and developed molecular tools to help breeders select for larger, more productive leaves — potentially boosting wheat yields.
Five major, stable genetic regions (QTLs) were identified controlling flag leaf length, width, area, and shape ratio, each explaining 10–16% of the trait variation on average.
A genetic map of 11,583 markers was built and used to map 97–273 QTLs across six environments using three different statistical methods.
Three KASP molecular markers closely linked to these QTLs were validated in independent populations and shown to have a pyramiding effect — stacking multiple favorable loci progressively increases flag leaf size.
