Assessment of Genetic Diversity for Grain Iron and Zinc Contents among 123 Rice Germplasm Lines

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Observational analysis revealed that grain iron and zinc levels vary among rice lines, indicating potential for biofortification programs.

Exceptional genetic diversity exists in rice germplasm for grain iron and zinc content, fostering biofortification efforts.
Grain iron content varied from 0.00 to 1694.80 ppm, while zinc content ranged from 0.00 to 159.87 ppm.
Correlation analysis displayed a significant positive relationship between grain iron and zinc content, supporting simultaneous improvement.
Principal component analysis identified distinct variations among traits, highlighting the need for targeted breeding programmes.

Kumar et al. (2025) studied this question.

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Observational analysis revealed that grain iron and zinc levels vary among rice lines, indicating potential for biofortification programs.