While extensive research has documented the frequency and agricultural impacts of summer heatwaves, the exclusive focus on seasonal extremes fails to account for crop-specific vulnerabilities across developmental stages. The authors utilize historical global temperature data to showcase the frequency of extreme high temperatures in major crop-producing regions (including rice, maize, wheat, and soybean), providing essential temperature data for studying how temperature influences crop yield and quality. Based on these findings, the authors highlight that crops are exposed to heat stress at various growth stages, such as tillering and panicle differentiation, which have not been adequately acknowledged. Meanwhile, the authors propose six strategies to mitigate the impact of heat stress on crop yield and quality.
Lastly, the authors highlight that global warming will lead to increased nighttime temperatures, which will also negatively impact crop yield and food quality. However, research on nighttime heat stress or combined day-night heat stress remains limited. The key factors regulating day-night heat tolerance have yet to be identified, making this an urgent research area for the future.
See the article:
Emerging strategies to improve heat stress tolerance in crops
https://link.springer.com/article/10.1007/s42994-024-00195-z
aBIOTECH
24-Jan-2025