ArticlePlants (Basel, Switzerland)2026
Agro-Climatic Variation in Wheat Growth, Yield, and Grain Quality Across South Korea.
Article in Plants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Wheat cultivation has recently expanded into new agro-climatic regions of South Korea owing to increasing concerns about food security and changing climatic conditions. However, comprehensive evaluations of regional cultivation suitability remain limited. This study evaluated regional variations in wheat growth, yield, grain quality, and cultivation suitability across three agro-climatic groups classified primarily by January minimum temperature: G1 (<-10 °C; central inland and high-altitude regions), G2 (-8 to -7 °C; southern inland and plain regions), and G3 (-4 to -3 °C; southern coastal and warmer regions). During the 2024 and 2025 growing seasons, field experiments were conducted, and growth traits, yield components, meteorological data, soil properties, and grain quality were analyzed. Principal component analysis (PCA) was used to examine the relationships among agronomic and grain quality traits. In both years, G3 exhibited superior growth performance, characterized by earlier heading, higher biomass, and greater tiller and spike numbers, resulting in the highest grain yield (4.3 t ha
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