Enhanced radiation use efficiency and grain filling rate as the main drivers of grain yield genetic gains in the CIMMYT elite spring wheat yield trial

CIMMYT's Wheat Breeding Program boosted grain yield by 0.96% annually at the Norman E. Borlaug Research Station in Mexico, showing global success and potential for further improvement.

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  4. Enhanced radiation use efficiency and grain filling rate as the main drivers of grain yield genetic gains in the CIMMYT elite spring wheat yield trial

CIMMYT’s Bread Wheat Breeding Program analyzed top wheat genotypes over 14 years, aiming to boost grain yield (GY) and stability. Results at the Norman E. Borlaug Research Station in Mexico showed an annual GY gain of 0.96%, driven by enhancements in biomass, grain filling rate, and radiation use efficiency. This underscores CIMMYT’s success in delivering high-yielding wheat varieties globally and suggests potential future gains through diverse genotype intercrossing.

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