Confronting the phenomics scale gap in field crop breeding

Abstract

High-throughput phenotyping (HTP) has advanced rapidly in recent decades, driven by technological developments across research and agricultural frameworks. Despite its success in measuring traits, it remains underutilized in field crop breeding programs. While the most critical and labor-intensive selection is conducted on heterozygous single plants or small plots at early stages, most phenotyping research focuses on stable genotypes grown in large plots. Here, we reconsider how HTP can be effectively integrated into breeding by accounting for methodologies, scale-related constraints, and technological limitations. Our focus remains on self-pollinated field crops, the predominant global food source. In light of climate change and food security needs, improving the integration of breeding and phenomics can accelerate genetic and technological advances in developing elite varieties.

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